https://padlet.com/wilrick_dong/dong_ibra one shot en-us 2019-06-03 02:00:19 UTC 2019-06-05 08:27:16 UTC hello@padlet.com https://imgglb.padletcdn.com/v13/image?t=g_auto&url=https%3A%2F%2Fpadlet.net%2Ficons%2Fpng%2F1f5fa.png wilrick_dong https://padlet.com/wilrick_dong/dong_ibra/wish/365550457 The globe is heating up. Both land and oceans are warmer now than record-keeping began in 1880, and temperatures are still ticking upward. This temperature rise, in a nutshell, is global warming.]]> 2019-06-04 11:50:00 UTC https://padlet.com/wilrick_dong/dong_ibra/wish/365550457 wilrick_dong https://padlet.com/wilrick_dong/dong_ibra/wish/365551011 The main driver of today's warming is the combustion of fossil fuels. These hydrocarbons heat up the planet via the greenhouse effect, which is caused by the interaction between Earth's atmosphere and incoming radiation from the sun. "The basic physics of the greenhouse effect were figured out more than a hundred years ago by a smart guy using only pencil and paper," Josef Werne, a professor of geology and environmental science at the University of Pittsburgh, told Live Science.]]> 2019-06-04 11:52:27 UTC https://padlet.com/wilrick_dong/dong_ibra/wish/365551011 wilrick_dong https://padlet.com/wilrick_dong/dong_ibra/wish/365552232 (just open new window if not loading)]]> 2019-06-04 11:58:30 UTC https://padlet.com/wilrick_dong/dong_ibra/wish/365552232 wilrick_dong https://padlet.com/wilrick_dong/dong_ibra/wish/365694846 (just open new window if not loading)]]> 2019-06-04 20:32:07 UTC https://padlet.com/wilrick_dong/dong_ibra/wish/365694846 wilrick_dong https://padlet.com/wilrick_dong/dong_ibra/wish/365699203 Perhaps the most visible effect of climate change so far is the melting of glaciers and sea ice. The ice sheets have been retreating since the end of the last Ice Age about 11,700 years ago, but the last century's warming has hastened their demise. A 2016 study found that there is a 99 percent chance that global warming has caused the recent retreat of glaciers; in fact, the research showed, these rivers of ice retreated 10 to 15 times the distance they would have if the climate had stayed stable. Glacier National Park in Montana had 150 glaciers in the late 1800s. Today it has 26. The loss of glaciers can cause the loss of human life when icy dams holding back glacier lakes destabilise and burst, or when avalanches caused by unstable ice bury villages]]> 2019-06-04 20:58:08 UTC https://padlet.com/wilrick_dong/dong_ibra/wish/365699203 wilrick_dong https://padlet.com/wilrick_dong/dong_ibra/wish/365700395 The most ambitious effort to forestall warming is the Paris Agreement. This nonbinding international treaty entered into force in November 2016. The aim is to keep warming "well below 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit the temperature increase even further to 1.5 degrees Celsius.
Solving climate change will require big shifts in energy production, from fossil fuels to less carbon-intensive sources. Some scientists even think geoengineering will be needed to cool the planet.]]> 2019-06-04 21:06:24 UTC https://padlet.com/wilrick_dong/dong_ibra/wish/365700395 wilrick_dong https://padlet.com/wilrick_dong/dong_ibra/wish/365700750

Carbon dioxide levels in the atmosphere are at 406.5 ppm as of 2017, their highest levels in 650,000 years.

Average global temperature is up 1.7 degrees F (0.94 degrees C) since 1880.

The minimum expanse of Arctic summer sea ice has declined 13.3 percent per decade since the 1980s.

Land ice has declined at the poles by 286 gigatons a year since 2002.

Global sea level has risen 7 inches (176 millimeters) in the past century.

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