Global Warming

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Last updated 5 years ago

Discipline:
Social Studies
Subject:
Geography
Grade:
10

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Global Warming

Global Warming

Natural amounts of carbon dioxide have varied from 180 to 300 parts per miliion. Today's levels are around 440 ppm. That's about 40% more than the highest natural levels over the past 800,000 years!

What is it?Global warming is the term which is used to describe the increasing temperatures in the Earth's atmosphere, as well as it's oceans. It is believed to be permanently damaging the Earth's climate.

What's causing it?It's pretty suprising, actually. Research shows that humans are most responsible for global warming. This is primarily due to our activities in burning fossil fuels and cutting down forests, known as deforestation. Doing this releases carbon dioxide and other heat-trapping gases into the Earth's atmosphere. Also, since forests absorb large amounts of carbon dioxide to grow, getting rid of them isn't helping.

Okay. But what are the effects?The average global temperature has increased by 1.4 degrees fahrenheit over the past 100 years. Other effects include disturbing wildlife ecosystems, affecting animal migration periods, and ice melting. And what happens when ice melts? You guessed it, more water. It is estimated that sea levels are rising every year due to this climate change.

What are we doing to stop it?There are some organizations focused on finding ways to stop global warming, whether it's researching it, teaching ways to use less power, or even convincing people that global warming exists. The only way to really keep it from getting more serious is if all countries pitch in to use less power every year and grant funds to people working to stop global warming.

Sourceshttp://www.nrdc.org/globalwarminghttp://www.livescience.comhttp://www.nrdc.org/globalwarming/gsteps.asp


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