Greenland's Ice Is Melting
How is climate change impacting human health? Explore how shifts in extreme natural events, vector-borne diseases, and water will affect human populations.
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Hurricanes and Climate Change
How Melting Arctic Ice Affects Ocean Currents
Climate models predict that Earth’s global average temperate will rise in the future. By the end of the century, 2°C of warming may be inevitable and, if greenhouse gases continue to rise at current levels, warming of about 4°C (7.2°F) can be expected. Only with swift action to reduce greenhouse gas emissions will we be able to reduce some of the projected impacts of climate change.
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Changes in Earth's climate have different effects in different areas of the world. Some places will warm much more than others, some regions will receive more rainfall, while others are exposed to more frequent droughts.
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The sea level is rising due to melting ice sheets and glaciers, as well as thermal expansion of seawater. As global temperatures continue to go up, how much will sea levels rise?
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Melting sea ice has only a minor impact on sea level rise because the ice is already in the ocean, but it does cause major changes to the planet. When sea ice melts, more sunlight is absorbed by the Earth, which causes more warming. It’s a vicious cycle. And here’s how it works.