What’s wrong with our weather (3)
Seeing spots. Scientists used to assume that our sunshine’s with constant, steady brightness. But recent satellite measurements have confirmed that the sun turns its temperature up and down based on the 11 year cycle of magnetic “sunspots.” The more spots, the brighter the sun.
The present cycle should peak around 2001, when our sun might burn even hotter than during the last sunspot peak, wholesale replica designer handbags, around 1990. But, oddly, recent studies indicate that this could gring colder winters as well as hotter summers for much of the northern hemisphere. Sunspots are thought to influence global wind patterns, and one effect is that a pear in sunspot activity tends to bring more cold air southward.
In addition to this 11 years cycle, there is longer one including an 80 to 100 year cycle that will heat to a peak around the yare 2010, bring an even brighter sun. but when sunspot numbers return to normal, wholesale designer handbags, the earth’s climate could cool quickly, quite possibly more quickly and much cooler than we’d like.
Clearly, many different forces are now shaping and bending the earth’s climate. The past two decades have seen some wild weather, and the next one may well bring extremes unknown in living memory. But this need not bring disaster.
Science and common sense offer ways to minimize the risk of devastating climate change. We can slow down the building of co2 in our atmosphere by increasing energy conservation; by protecting tropical forests; by designing automobiles that burn less gas per mile; by turning to renewable energy sources such as solar, hydro, wind, wholesale coach handbags and possibly nuclear power. Fortunately, we have the tools for preventing disaster. It only remains for us to use them.
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