U.N. Draft Report Lists Unchecked Emissions’ RisksLast Updated on 2014-08-27 10:46:14Runaway growth in the emission of greenhouse gases is swamping all political efforts to deal with the problem, raising the risk of “severe, pervasive and irreversible impacts” over the coming decades, according to a draft of a major new United Nations report.
Global warming is already cutting grain production by several percentage points, the report found, and that could grow much worse if emissions continue unchecked. Higher seas, devastating heat waves, torrential rain and other climate extremes are also being felt around the world as a result of human-produced emissions, the draft report said, and those problems are likely to intensify unless the gases are brought under control.
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Why Learning About Climate Change Made Me Quit Fast FoodLast Updated on 2014-08-26 13:25:52This is a guest post from Brandon Truong, an ACE student from Fremont, CA
Ever since I can remember, I’ve loved food. Especially fast food. In fact, thanks to my appetite and my friends (thanks guys), I even have my very own Instagram hashtag appropriately named #brandoneating, with pictures of me chowing down on all kinds of greasy fast food. Now you’re probably wondering, “Why is he telling me all this?”
Well, let’s backtrack a little bit. Click here to read more
The increasing efficiency of tornado days in the United StatesLast Updated on 2014-08-22 15:44:20
The authors analyze the historical record of tornado reports in the United States and find evidence for changes in tornado climatology possibly related to global warming. They do this by examining the annual number of days with many tornadoes and the ratio of these days to days with at least one tornado and by examining the annual proportion of tornadoes occurring on days with many tornadoes. Additional evidence of a changing tornado climate is presented by considering tornadoes in geographic clusters and by analyzing the density of tornadoes within the clusters. There is a consistent decrease in the number of days with at least one tornado at the same time as an increase in the number of days with many tornadoes. These changes are interpreted as an increasing proportion of tornadoes occurring on days with many tornadoes. Coincident with these temporal changes are increases in... More »
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