Internet: (adapted).
Based on the comic strip above, judge the following items.
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Texto associado
Text 3A1-II
There is ample evidence that reading not only strengthens second language vocabulary, but also expands it as readers meet words, or the same word, in different contexts. After all, that is the way lexical vocabulary is acquired in real life, through hearing it in our first languages.
Apart from learning vocabulary, learners also learn new structures, which can form a strong scaffolding both for learning other new structures and introducing grammatical items to a class.
In listening to each other read, discuss points in groups, debate, or answer and their rationale, second language learners will sharpen both listening and speaking skills.
There is no magic bullet, no single explanation for what teachers can do to ensure that their students learn to read a second or foreign language. Practice and plenty of it may be the only way out.
J. Kembo. Using short texts to teach English as second language. Rongo University, Kenya. Universal Journal of Educational Research 4(12): 2735-2743, 2016 (adapted).
There is ample evidence that reading not only strengthens second language vocabulary, but also expands it as readers meet words, or the same word, in different contexts. After all, that is the way lexical vocabulary is acquired in real life, through hearing it in our first languages.
Apart from learning vocabulary, learners also learn new structures, which can form a strong scaffolding both for learning other new structures and introducing grammatical items to a class.
In listening to each other read, discuss points in groups, debate, or answer and their rationale, second language learners will sharpen both listening and speaking skills.
There is no magic bullet, no single explanation for what teachers can do to ensure that their students learn to read a second or foreign language. Practice and plenty of it may be the only way out.
J. Kembo. Using short texts to teach English as second language. Rongo University, Kenya. Universal Journal of Educational Research 4(12): 2735-2743, 2016 (adapted).
In the very beginning of the second paragraph of text 3A1-II, “Apart from” can be correctly replaced with
Texto associado
Atenção : Para responder às questões de números 41 e 42, considere o texto abaixo.
FDA clears first diagnostic radiology app, Mobile MIM
By Brian Dolan
February 04, 2011
Mobile MIM was one of the very first medical applications to debut in Apple's AppStore when it first launched in 2008, but the application also has the distinction of being the first medical application pulled from the store because of regulatory concerns. Today those concerns are over: The US Food and Drug Administration has officially granted the mobile radiology application a 510(k) clearance.
“The application is the first cleared by the FDA for viewing images and making medical diagnoses based on computed tomography (CT), magnetic resonance imaging (MRI), and nuclear medicine technology, such as positron emission tomography (PET)," the FDA stated in a press release this morning. "It is not intended to replace full workstations and is indicated for use only when there is no access to a workstation.”
MIM's experience is one of the few public accounts of the nuances of FDA regulation of mobile health services. The clearance some two and a half years later of an app that originally launched with Apple's AppStore is surely a milestone for mobile health.
(Adapted from https://www.mobihealthnews.com )
FDA clears first diagnostic radiology app, Mobile MIM
By Brian Dolan
February 04, 2011
Mobile MIM was one of the very first medical applications to debut in Apple's AppStore when it first launched in 2008, but the application also has the distinction of being the first medical application pulled from the store because of regulatory concerns. Today those concerns are over: The US Food and Drug Administration has officially granted the mobile radiology application a 510(k) clearance.
“The application is the first cleared by the FDA for viewing images and making medical diagnoses based on computed tomography (CT), magnetic resonance imaging (MRI), and nuclear medicine technology, such as positron emission tomography (PET)," the FDA stated in a press release this morning. "It is not intended to replace full workstations and is indicated for use only when there is no access to a workstation.”
MIM's experience is one of the few public accounts of the nuances of FDA regulation of mobile health services. The clearance some two and a half years later of an app that originally launched with Apple's AppStore is surely a milestone for mobile health.
(Adapted from https://www.mobihealthnews.com )
No trecho “ Today those concerns are over ” (1 o parágrafo), ‘ are over ’ pode ser substituído, sem alteração de sentido, por
Texto associado
Robots, the next generation of soccer players
1 ____ If you think a robot will steal your job, you are not
alone. Soccer players should be worried too. The next
Messi probably won’t be of flesh and blood but plastic
and metal.
2 ____ The concept emerged during the conference
“Workshop on grand challenges in artificial
intelligence,” held in Tokyo in 1992, and independently,
in 1993, when Professor Alan Mackworth from
the University of Bristol in Canada described an
experiment with small soccer players in a scientific
article.
3 ____ Over 40 teams already participated in the first
RoboCup tournament in 1997, and the competition is
held every year. The RoboCup Federation wants to
play and win a game against a real-world cup humans’
team by 2050.
4 ____ The idea behind artificially intelligent players
is to investigate how robots perceive motion and
communicate with each other. Physical abilities like
walking, running, and kicking the ball while maintaining
balance are crucial to improving robots for other tasks
like rescue, home, industry, and education.
5 ____ Designing robots for sports requires much more
than experts in state-of-the-art technology. Humans
and machines do not share the same skills. Engineers
need to impose limitations on soccer robots to imitate
soccer players as much as possible and ensure
following the game’s rules.
6 ____ RoboCup Soccer Federation, the “FIFA” of robots,
which supports five leagues, imposes restrictions
on players’ design and rules of the game. Each has
its own robot design and game rules to give room
for different scientific goals. The number of players,
their size, the ball type, and the field dimensions are
different for each league.
7 ____ In the humanoid league the players are human-
like robots with human-like senses. However, they are
rather slow. Many of the skills needed to fully recreate
actual soccer player movements are still in the early
stages of research.
8 ____ The game becomes exciting for middle and small
size leagues. The models are much simpler; they
are just boxes with a cyclopean eye. Their design
focuses on team behavior: recognizing an opponent,
cooperating with team members, receiving and giving
a standard FIFA size ball.
9 ____ Today, soccer robots are entirely autonomous.
They wireless “talk” to each other, make decisions
regarding strategy in real-time, replace an “injured”
player, and shoot goals. The only person in a
RoboCup game is the referee. The team coaches
are engineers in charge of training the RoboCups’
artificial intelligence for fair play: the robots don’t
smash against each other or pull their shirts.
10 ____ The next RoboCup competition will soon be
played, virtually, with rules that will allow teams to
participate without establishing physical contact.
Available at: . Retrieved on: July 4th, 2021. Adapted.
1 ____ If you think a robot will steal your job, you are not
alone. Soccer players should be worried too. The next
Messi probably won’t be of flesh and blood but plastic
and metal.
2 ____ The concept emerged during the conference
“Workshop on grand challenges in artificial
intelligence,” held in Tokyo in 1992, and independently,
in 1993, when Professor Alan Mackworth from
the University of Bristol in Canada described an
experiment with small soccer players in a scientific
article.
3 ____ Over 40 teams already participated in the first
RoboCup tournament in 1997, and the competition is
held every year. The RoboCup Federation wants to
play and win a game against a real-world cup humans’
team by 2050.
4 ____ The idea behind artificially intelligent players
is to investigate how robots perceive motion and
communicate with each other. Physical abilities like
walking, running, and kicking the ball while maintaining
balance are crucial to improving robots for other tasks
like rescue, home, industry, and education.
5 ____ Designing robots for sports requires much more
than experts in state-of-the-art technology. Humans
and machines do not share the same skills. Engineers
need to impose limitations on soccer robots to imitate
soccer players as much as possible and ensure
following the game’s rules.
6 ____ RoboCup Soccer Federation, the “FIFA” of robots,
which supports five leagues, imposes restrictions
on players’ design and rules of the game. Each has
its own robot design and game rules to give room
for different scientific goals. The number of players,
their size, the ball type, and the field dimensions are
different for each league.
7 ____ In the humanoid league the players are human-
like robots with human-like senses. However, they are
rather slow. Many of the skills needed to fully recreate
actual soccer player movements are still in the early
stages of research.
8 ____ The game becomes exciting for middle and small
size leagues. The models are much simpler; they
are just boxes with a cyclopean eye. Their design
focuses on team behavior: recognizing an opponent,
cooperating with team members, receiving and giving
a standard FIFA size ball.
9 ____ Today, soccer robots are entirely autonomous.
They wireless “talk” to each other, make decisions
regarding strategy in real-time, replace an “injured”
player, and shoot goals. The only person in a
RoboCup game is the referee. The team coaches
are engineers in charge of training the RoboCups’
artificial intelligence for fair play: the robots don’t
smash against each other or pull their shirts.
10 ____ The next RoboCup competition will soon be
played, virtually, with rules that will allow teams to
participate without establishing physical contact.
Available at: . Retrieved on: July 4th, 2021. Adapted.
In the sentence fragment of the fifth paragraph “ Designing robots for sports requires much more than experts in state-of-the-art technology”, the words in bold can be replaced, without any change in meaning, by the following words:
Texto associado
Robots, the next generation of soccer players
1 ____ If you think a robot will steal your job, you are not
alone. Soccer players should be worried too. The next
Messi probably won’t be of flesh and blood but plastic
and metal.
2 ____ The concept emerged during the conference
“Workshop on grand challenges in artificial
intelligence,” held in Tokyo in 1992, and independently,
in 1993, when Professor Alan Mackworth from
the University of Bristol in Canada described an
experiment with small soccer players in a scientific
article.
3 ____ Over 40 teams already participated in the first
RoboCup tournament in 1997, and the competition is
held every year. The RoboCup Federation wants to
play and win a game against a real-world cup humans’
team by 2050.
4 ____ The idea behind artificially intelligent players
is to investigate how robots perceive motion and
communicate with each other. Physical abilities like
walking, running, and kicking the ball while maintaining
balance are crucial to improving robots for other tasks
like rescue, home, industry, and education.
5 ____ Designing robots for sports requires much more
than experts in state-of-the-art technology. Humans
and machines do not share the same skills. Engineers
need to impose limitations on soccer robots to imitate
soccer players as much as possible and ensure
following the game’s rules.
6 ____ RoboCup Soccer Federation, the “FIFA” of robots,
which supports five leagues, imposes restrictions
on players’ design and rules of the game. Each has
its own robot design and game rules to give room
for different scientific goals. The number of players,
their size, the ball type, and the field dimensions are
different for each league.
7 ____ In the humanoid league the players are human-
like robots with human-like senses. However, they are
rather slow. Many of the skills needed to fully recreate
actual soccer player movements are still in the early
stages of research.
8 ____ The game becomes exciting for middle and small
size leagues. The models are much simpler; they
are just boxes with a cyclopean eye. Their design
focuses on team behavior: recognizing an opponent,
cooperating with team members, receiving and giving
a standard FIFA size ball.
9 ____ Today, soccer robots are entirely autonomous.
They wireless “talk” to each other, make decisions
regarding strategy in real-time, replace an “injured”
player, and shoot goals. The only person in a
RoboCup game is the referee. The team coaches
are engineers in charge of training the RoboCups’
artificial intelligence for fair play: the robots don’t
smash against each other or pull their shirts.
10 ____ The next RoboCup competition will soon be
played, virtually, with rules that will allow teams to
participate without establishing physical contact.
Available at: . Retrieved on: July 4th, 2021. Adapted.
1 ____ If you think a robot will steal your job, you are not
alone. Soccer players should be worried too. The next
Messi probably won’t be of flesh and blood but plastic
and metal.
2 ____ The concept emerged during the conference
“Workshop on grand challenges in artificial
intelligence,” held in Tokyo in 1992, and independently,
in 1993, when Professor Alan Mackworth from
the University of Bristol in Canada described an
experiment with small soccer players in a scientific
article.
3 ____ Over 40 teams already participated in the first
RoboCup tournament in 1997, and the competition is
held every year. The RoboCup Federation wants to
play and win a game against a real-world cup humans’
team by 2050.
4 ____ The idea behind artificially intelligent players
is to investigate how robots perceive motion and
communicate with each other. Physical abilities like
walking, running, and kicking the ball while maintaining
balance are crucial to improving robots for other tasks
like rescue, home, industry, and education.
5 ____ Designing robots for sports requires much more
than experts in state-of-the-art technology. Humans
and machines do not share the same skills. Engineers
need to impose limitations on soccer robots to imitate
soccer players as much as possible and ensure
following the game’s rules.
6 ____ RoboCup Soccer Federation, the “FIFA” of robots,
which supports five leagues, imposes restrictions
on players’ design and rules of the game. Each has
its own robot design and game rules to give room
for different scientific goals. The number of players,
their size, the ball type, and the field dimensions are
different for each league.
7 ____ In the humanoid league the players are human-
like robots with human-like senses. However, they are
rather slow. Many of the skills needed to fully recreate
actual soccer player movements are still in the early
stages of research.
8 ____ The game becomes exciting for middle and small
size leagues. The models are much simpler; they
are just boxes with a cyclopean eye. Their design
focuses on team behavior: recognizing an opponent,
cooperating with team members, receiving and giving
a standard FIFA size ball.
9 ____ Today, soccer robots are entirely autonomous.
They wireless “talk” to each other, make decisions
regarding strategy in real-time, replace an “injured”
player, and shoot goals. The only person in a
RoboCup game is the referee. The team coaches
are engineers in charge of training the RoboCups’
artificial intelligence for fair play: the robots don’t
smash against each other or pull their shirts.
10 ____ The next RoboCup competition will soon be
played, virtually, with rules that will allow teams to
participate without establishing physical contact.
Available at: . Retrieved on: July 4th, 2021. Adapted.
In paragraph 7, the word However in the fragment “In the humanoid league, the players are human-like robots with human-like senses. However, they are rather slow” can be replaced, without change in meaning, by
Texto associado
COVID-19 Economy: Expert insights on what you need to know
1 As we practice social distancing and businesses
struggle to adapt, it’s no secret the unique challenges
of Covid-19 are profoundly shaping our economic
climate. U.S. Bank financial industry and regulatory
affairs expert Robert Schell explains what you need
to know in this uncertain time.
• Don’t panic while things are “on pause”
2 Imagine clicking the pause button on your favorite
TV show. Whether you stopped to make dinner or put
kids to bed, hitting pause gives you time to tackle what
matters most. Today’s economy is similar. While we
prioritize health and safety, typical activities like driving
to work, eating at restaurants, traveling and attending
sporting events are on hold. This widespread social
distancing takes a toll on our economy, putting strain
on businesses and individuals alike.
3 Keep your financial habits as normal as possible
during this time. Make online purchases, order
takeout, pay bills and buy groceries. These everyday
purchases put money back into the economy and
prevent it from dipping further into a recession.
• Low interest rates could help make ends meet
4 In March, the Federal Reserve cut rates drastically
to boost economic activity and make borrowing more
affordable. For you, this means interest rates are low
for credit cards, loans and lines of credit, and even
fixed-rate mortgages. Consider taking advantage of
these low rates if you need extra help paying your
bills, keeping your business running or withstanding a
period of unemployment.
• Spend on small businesses
5 Looking to make a positive impact? Supporting
small businesses is an easy and powerful way to help.
You can order takeout, tip generously or donate to
your local brick-and-mortar retail store, if they provide
that option. Your support makes a big impact for
struggling business owners.
• Prior economic strength may help us bounce
back
6 The thriving economy of 2019 isn’t just a distant,
bittersweet memory. When our health is no longer
at risk and social distancing mandates begin to
diminish, we’ll slowly start to rebuild. The stability,
low unemployment rate and upward-trending market
we experienced prior to Covid-19 puts us in a good
position to kick-start economic activity and rebound
more quickly.
Available at . Retrieved on: Jul. 20, 2021. Adapted.
1 As we practice social distancing and businesses
struggle to adapt, it’s no secret the unique challenges
of Covid-19 are profoundly shaping our economic
climate. U.S. Bank financial industry and regulatory
affairs expert Robert Schell explains what you need
to know in this uncertain time.
• Don’t panic while things are “on pause”
2 Imagine clicking the pause button on your favorite
TV show. Whether you stopped to make dinner or put
kids to bed, hitting pause gives you time to tackle what
matters most. Today’s economy is similar. While we
prioritize health and safety, typical activities like driving
to work, eating at restaurants, traveling and attending
sporting events are on hold. This widespread social
distancing takes a toll on our economy, putting strain
on businesses and individuals alike.
3 Keep your financial habits as normal as possible
during this time. Make online purchases, order
takeout, pay bills and buy groceries. These everyday
purchases put money back into the economy and
prevent it from dipping further into a recession.
• Low interest rates could help make ends meet
4 In March, the Federal Reserve cut rates drastically
to boost economic activity and make borrowing more
affordable. For you, this means interest rates are low
for credit cards, loans and lines of credit, and even
fixed-rate mortgages. Consider taking advantage of
these low rates if you need extra help paying your
bills, keeping your business running or withstanding a
period of unemployment.
• Spend on small businesses
5 Looking to make a positive impact? Supporting
small businesses is an easy and powerful way to help.
You can order takeout, tip generously or donate to
your local brick-and-mortar retail store, if they provide
that option. Your support makes a big impact for
struggling business owners.
• Prior economic strength may help us bounce
back
6 The thriving economy of 2019 isn’t just a distant,
bittersweet memory. When our health is no longer
at risk and social distancing mandates begin to
diminish, we’ll slowly start to rebuild. The stability,
low unemployment rate and upward-trending market
we experienced prior to Covid-19 puts us in a good
position to kick-start economic activity and rebound
more quickly.
Available at . Retrieved on: Jul. 20, 2021. Adapted.
In the 1 st paragraph, in the fragment “it’s no secret the unique challenges of Covid-19 are profoundly shaping our economic climate”, the expression it’s no secret (that) means
Texto associado
Taking into account the following text, judge the subsequent items.
Perspectives on modern data analytics
By Eric Knorr - Editor in Chief, CIO | APR 12, 2021 3:00 AM PDT
Some things don't change, even during a pandemic. Consistent with previous years, in CIO’s 2021 State of the CIO survey, a plurality of the 1,062 IT leaders surveyed chose “data/business analytics” as the No.1 tech initiative expected to drive IT investment.
Unfortunately, analytics initiatives seldom do nearly as well when it comes to stakeholder satisfaction.
Last year, CIO contributor Mary K. Pratt offered an excellent analysis of why data analytics initiatives still fail, including poor-quality or siloed data, vague rather than targeted business objectives, and clunky one-size-fits-all feature sets. But a number of fresh approaches and technologies are making these pratfalls less likely.
(...)
New technology invariably incurs new risks. No advancement has had more momentous impact on analytics than machine learning – from automating data prep to detecting meaningful patterns in data – but it also adds an unforeseen hazard. As CSO Senior Writer Lucian Constantin explains in "How data poisoning attacks corrupt machine learning models," deliberately skewed data injected by malicious hackers can tilt models toward some nefarious goal. The result could be, say, manipulated product recommendations, or even the ability for hackers to infer confidential underlying data.
(...)
In the end, the secret to successful analytics is not in choosing and implementing the perfect technology, but in cultivating a broad understanding that pervasive analytics yields better decisions and superior outcomes. Usually, you can iron out technology kinks or requirements misunderstandings. But if you can't change the mindset, few will use the beautiful analytics machine you just built.
Disponível em: https://www.cio.com/article/3614692/5-perspectives-on-modern-data-analytics.html. Acesso em: 15 out. 2021.
Perspectives on modern data analytics
By Eric Knorr - Editor in Chief, CIO | APR 12, 2021 3:00 AM PDT
Some things don't change, even during a pandemic. Consistent with previous years, in CIO’s 2021 State of the CIO survey, a plurality of the 1,062 IT leaders surveyed chose “data/business analytics” as the No.1 tech initiative expected to drive IT investment.
Unfortunately, analytics initiatives seldom do nearly as well when it comes to stakeholder satisfaction.
Last year, CIO contributor Mary K. Pratt offered an excellent analysis of why data analytics initiatives still fail, including poor-quality or siloed data, vague rather than targeted business objectives, and clunky one-size-fits-all feature sets. But a number of fresh approaches and technologies are making these pratfalls less likely.
(...)
New technology invariably incurs new risks. No advancement has had more momentous impact on analytics than machine learning – from automating data prep to detecting meaningful patterns in data – but it also adds an unforeseen hazard. As CSO Senior Writer Lucian Constantin explains in "How data poisoning attacks corrupt machine learning models," deliberately skewed data injected by malicious hackers can tilt models toward some nefarious goal. The result could be, say, manipulated product recommendations, or even the ability for hackers to infer confidential underlying data.
(...)
In the end, the secret to successful analytics is not in choosing and implementing the perfect technology, but in cultivating a broad understanding that pervasive analytics yields better decisions and superior outcomes. Usually, you can iron out technology kinks or requirements misunderstandings. But if you can't change the mindset, few will use the beautiful analytics machine you just built.
Disponível em: https://www.cio.com/article/3614692/5-perspectives-on-modern-data-analytics.html. Acesso em: 15 out. 2021.
The adjective “pervasive” in pervasive analytics could be replaced by the adjective “extensive” without a change in meaning in the aforementioned context.
Texto associado
TEXT 1 – Questions 31 to 40
Developing a Love of Reading in Students
Exposing new readers to a variety of genres can help them find the books they love. Plus, we’ll show some reading comprehension strategies to deepen their engagement.
By Kathryn Starke
January 31, 2020
Every elementary school teacher is essential in helping each child on his or her reading journey. When we provide the resources to meet the literacy needs of our students beginning as early as prekindergarten, students and teachers will feel both confident and competent in teaching and learning to read.
While helping students learn to read, it is also important to create a love of reading. Students who read voluntarily report less negativity about reading than those who are required to read. Motivation is the key here. One of the best resources I have found for creating motivation is a shelf filled with books that match students’ interest level and reading level. They should be surrounded by titles that reflect the lives of themselves as well as their classmates.
Also, students should be provided with books that represent all genres so that they can determine what they most enjoy reading. Student book choice is the first step in getting children hooked on reading. When students have ownership of their reading, successful, independent readers begin to bloom.
Assume that students have no understanding of the vocabulary words or content of the text. Allow them to make predictions, make connections, and ask questions before every reading experience to gauge their knowledge. These three comprehension strategies inform a teacher of the students’ proficiency about a particular topic. Encourage readers to use the title and pictures to make a prediction about what the book is about before reading it. During reading, students confirm their prediction and make a connection.
(Adapted from: https://www.edutopia.org)
Developing a Love of Reading in Students
Exposing new readers to a variety of genres can help them find the books they love. Plus, we’ll show some reading comprehension strategies to deepen their engagement.
By Kathryn Starke
January 31, 2020
Every elementary school teacher is essential in helping each child on his or her reading journey. When we provide the resources to meet the literacy needs of our students beginning as early as prekindergarten, students and teachers will feel both confident and competent in teaching and learning to read.
While helping students learn to read, it is also important to create a love of reading. Students who read voluntarily report less negativity about reading than those who are required to read. Motivation is the key here. One of the best resources I have found for creating motivation is a shelf filled with books that match students’ interest level and reading level. They should be surrounded by titles that reflect the lives of themselves as well as their classmates.
Also, students should be provided with books that represent all genres so that they can determine what they most enjoy reading. Student book choice is the first step in getting children hooked on reading. When students have ownership of their reading, successful, independent readers begin to bloom.
Assume that students have no understanding of the vocabulary words or content of the text. Allow them to make predictions, make connections, and ask questions before every reading experience to gauge their knowledge. These three comprehension strategies inform a teacher of the students’ proficiency about a particular topic. Encourage readers to use the title and pictures to make a prediction about what the book is about before reading it. During reading, students confirm their prediction and make a connection.
(Adapted from: https://www.edutopia.org)
Read the following excerpt from the text. Pay close attention to the words in bold: “ Every elementary school teacher is (I) essential in helping each child on his or her reading (II) journey . When we (III) provide the resources (IV) to meet the literacy needs of (V) our students beginning as (VI) early as prekindergarten, students (VII) and teachers will feel both confident and competent in teaching and learning to read .” Now choose the alternative which classifies each word correctly according to their function in grammar in the right sequence:
Read the sentences below and choose the option which is grammatically INCORRECT :
Texto associado
A deep freeze this week in the Lone Star state, which relies on electricity to heat many homes, is causing power demand to skyrocket. At the same time, natural gas, coal, wind and nuclear facilities in Texas have been knocked offline by the unthinkably low temperatures. “The extreme cold is causing the entire system to freeze up,” said Jason Bordoff, director of Columbia University’s Center on Global Energy Policy. “All sources of energy are underperforming in the extreme cold because they’re not designed to handle these unusual conditions.” The ripple effects are being felt around the nation as Texas’ prolific oil-and-gas industry stumbles. It’s striking that these power outages are happening in a state with abundant energy resources. Texas produces more electricity than any other US state — generating almost twice as much as Florida, the next-closest, according to federal statistics. Wind power is also booming in Texas, which produced about 28% of all the US wind-powered electricity in 2019, the EIA said. But the problem is that not only is Texas an energy superpower, it tends to be an above-average temperature state. That means its infrastructure is ill-prepared for the cold spell currently wreaking havoc. And the consequences are being felt by millions. Critics of renewable energy have pointed out that wind turbines have frozen or needed to be shut down due to the extreme weather. Even though other places with colder weather (like Iowa and Denmark) rely on wind for even larger shares of power, experts said the turbines in Texas were not winterized for the unexpected freeze. But this is not just about wind turbines going down. Natural gas and coal-fired power plants need water to stay online. Yet those water facilities froze in the cold temperatures and others lost access to the electricity they require to operate. It’s too early to definitively say what went wrong in Texas and how to prevent similar outages. More information will need to be released by state authorities. Still, some experts say the criticism of wind power appears overdone already. “In terms of the blame game, the focus on wind is a red herring. It’s more of a political issue than what is causing the power problems on the grid,” said Dan Cohan, associate professor of environmental engineering at Rice University. The energy crisis in Texas raises also questions about the nature of the state’s deregulated and decentralized electric grid. Unlike other states, Texas has made a conscious decision to isolate its grid from the rest of the country. That means that when things are running smoothly, Texas can’t export excess power to neighboring states. And in the current crisis, it can’t import power either. Internet: (adapted).
