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Earth's Temperatures: Now Answer These Questions: 1 - 'Dawn' in This Text Means

The study found that current global temperatures are warmer than almost any time in the last 11,300 years since the end of the last ice age. Data from ice cores, fossils, and ocean sediments show that temperatures have risen more quickly in the past 100 years than in the previous 5,000 years, largely due to carbon emissions since the Industrial Revolution. Scientists believe increased greenhouse gases will likely prevent another ice age from occurring in the coming thousands of years.

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158 views2 pages

Earth's Temperatures: Now Answer These Questions: 1 - 'Dawn' in This Text Means

The study found that current global temperatures are warmer than almost any time in the last 11,300 years since the end of the last ice age. Data from ice cores, fossils, and ocean sediments show that temperatures have risen more quickly in the past 100 years than in the previous 5,000 years, largely due to carbon emissions since the Industrial Revolution. Scientists believe increased greenhouse gases will likely prevent another ice age from occurring in the coming thousands of years.

Uploaded by

Alexandra Oana
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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Earth's Temperatures

The world is now warmer than at almost any time since the end of the last ice age and, on present
trends, will continue to reach a record high for the entire period since the dawn of civilisation, a study
has found.

The study published in the journal Science, aims to give a global overview of Earth's temperatures over
the past 11,300 years - a relatively balmy period known as the Holocene that began after the last major
ice age ended and encompasses all of recorded human civilization.

Their data (compiled by studying such things as ice cores, fossils and ocean sentiment) looked back
over a much longer era than previous research, which went back 1,500 years.

Scientists say it is further evidence that modern-day global warming isn't natural, but the result of rising
carbon dioxide emissions that have rapidly grown since the Industrial Revolution began roughly 250
years ago. Scientists say that if natural factors were still governing the climate, the Northern
Hemisphere would probably be destined to freeze over again in several thousand years. Instead,
scientists believe the enormous increase in greenhouse gases caused by industrialization will almost
certainly prevent that.

Shaun Marcott, a geologist at Oregon State University, says "global temperatures are warmer than
about 75 percent of anything we've seen over the last 11,000 years or so." The other way to look at that
is, 25 percent of the time since the last ice age, it's been warmer than now.

It's taken just 100 years for the average temperature to change by 1.3 degrees, when it took 5,000
years to do that before. By the end of the century, climate warming models predict an additional
increase of 2 to 11.5 degrees, due largely to carbon emissions, the study noted.

Now answer these questions:

 1 - 'Dawn' in this text means:

Beginning

Earth

Heat

Sunrise

 2 - 'Balmy' means:

Warm

Cool
Hot

Cold

 3 - True or false: this study looks at a longer than usual time-period.

False

True

 4 - The Earth's temperature has increased quickly since:

1,500 years ago

The Northern Hemisphere

The Industrial Revolution

The Holocene
5 - 'Prevent' means:

Slow

Encourage

Complete

Stop
6 - True or false: Scientist predict the earth will freeze over because of increased greenhouse
gases.

True

False
7 - True or false: The temperature will increase by 1.3 degrees in the next 100 years.

True

False
8 - This article could be described as a ___ look at the future.

Pessimistic

Optimistic

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