Is It Happening?
Yes. Earth is already showing many signs of worldwide climate change.
Average temperatures have climbed degrees Fahrenheit ( degree Celsius) around the world since 1880, much of this in recent decades, according to NASA's Goddard Institute for Space Studies.
The rate of warming is increasing. The 20th century's last two decades were the hottest in 400 years and possibly the warmest for several millennia, according to a number of climate studies. And the United Nations' Intergovernmental Panel on Climate Change (IPCC) reports that 11 of the past 12 years are among the dozen warmest since 1850.
The Arctic is feeling the effects the most. Average temperatures in Alaska, western Canada, and eastern Russia have risen at twice the global average, according to the multinational Arctic Climate Impact Assessment report compiled between 2000 and 2004.
Arctic ice is rapidly disappearing, and the region may have its first completely ice-free summer by 2040 or earlier. Polar bears and indigenous cultures are already suffering from the sea-ice loss.
Glaciers and mountain snows are rapidly melting—for example, Montana's Glacier National Park now has only 27 glaciers, versus 150 in 1910. In the Northern Hemisphere, thaws also come a week earlier in spring and freezes begin a week later.
Coral reefs, which are highly sensitive to small changes in water temperature, suffered the worst bleaching—or die-off in response to stress—ever recorded in 1998 , with some areas seeing bleach rates of 70 percent. Experts expect these sorts of events to increase in frequency and intensity in the next 50 years as sea temperatures rise.
An upsurge in the amount of extreme weather events, such as wildfires , heat waves , and strong tropical storms , is also attributed in part to climate change by some experts.
Are Humans Causing It?
Continued on Next Page >>
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maybe I’m missing something but I didn’t find either of these examples were particularly helpful nor do I think they got to the root cause. The man did not run out of gas bc he is bad at bluffing – I think the proper conclusion would be he makes bad financial decisions and shouldn’t gamble money he needs to pay his bills what should be be doing abt that?! Nor do I think we got to the root cause of the issue with the first example – the root problem is not that the Dir needs to be in the loop – many problems were identified and need to be addressed even if the Dir did not need to be informed. Changing just the last whys do not fix all the issues in either example.