According to Ken Caldeira in his article “The Great Climate
Experiment,” some of these global warming effects have already started
occurring. “Already we are witnessing the future envisioned by many of these
models take shape. As predicted, there has been more warming over land than
over the oceans, more at the poles than near the equator, more in winter than
in summer and more at night than in the day. Extreme downpours have become more
common. In the Arctic, ice and snow cover less area, and methane-rich
permafrost soils are beginning to melt. Weather is getting weirder, with storms
fueled by the additional heat.” Which of these unusual weather effects, like
Hurricane Sandy in October 2012, have you begun to witness?
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