Changes

Also in 1974, Nigel Calder, former editor of ''New Scientist'' and atmospheric researcher wrote in his book ''The Weather Machine'', "One might argue that there is a virtual certainty of the next ice age starting some time in the next 2000 years. Then the odds are only about 20-to-1 against it beginning in the next 100 years."  

Also in 1974, Nigel Calder, former editor of ''New Scientist'' and atmospheric researcher wrote in his book ''The Weather Machine'', "One might argue that there is a virtual certainty of the next ice age starting some time in the next 2000 years. Then the odds are only about 20-to-1 against it beginning in the next 100 years."  

In 1975 the liberal magazine ''[[Newsweek]]'' reported that "Meteorologists disagree about the cause and extent of the cooling trend,...but they are almost unanimous in the view that the trend will reduce agricultural productivity for the rest of the century." These authorities were skeptical that political leaders would take any positive action to compensate for the [[climate change]], though they conceded that the more dramatic solutions, such as melting the arctic ice cap, might create worse problems than that which they were designed to solve.<ref>http://denisdutton.com/newsweek_coolingworld.pdf</ref>

In 1975 the liberal magazine ''[[Newsweek]]'' reported that "Meteorologists disagree about the cause and extent of the cooling trend,...but they are almost unanimous in the view that the trend will reduce agricultural productivity for the rest of the century." These authorities were skeptical that political leaders would take any positive action to compensate for the [[climate change]], and they conceded that the more dramatic solutions, such as melting the arctic ice cap, might create worse problems than that which they were designed to solve.<ref>http://denisdutton.com/newsweek_coolingworld.pdf</ref>

==Natural Variability of the Climate System==

==Natural Variability of the Climate System==