And the news is not good, I'm afraid:
The Earth's climate is changing. Temperatures are rising, snow and rainfall patterns are shifting, and more extreme climate events—like heavy rainstorms and record high temperatures—are already affecting society and ecosystems. Scientists are confident that many of the observed changes in the climate can be linked to the increase in greenhouse gases in the atmosphere, caused largely by people burning fossil fuels to generate electricity, heat and cool buildings, and power vehicles.
While some of these indicators are not visible to the naked eye, others are undeniably visible, but I'm not sure how much longer they'll be there to be seen:
September 2012 had the lowest sea ice extent on record, 49 percent below the 1979-2000 average for that month.
The September 2012 record low sea ice extent was 1.3 million square miles (an area five times the size of Texas) less than the historical 1979-2000 average (see Figure 1).
If that's not shocking enough, maybe the squiggly lines will make it more clear:
Since over half of the world's oxygen comes from the oceans, and the vast majority of that is produced by plankton (both phyto and zoo), the steady rise in ocean acidity should be especially noteworthy (not to mention fearsome) to us:
A couple of hundred years from now, when our (surviving) population sends their children to school, will Chapter 17 be titled "Crisis Averted", or "Too Little, Too Late"?
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