Recent pronouncements from the White House, warning of the effects of global warming, have inspired a number of letters to the Herald on that subject. One even suggests that global warming is a threat to world peace.
In actuality, according to the Danish Meteorological Institute, a cooling trend in now underway.
Satellite photos show that the Arctic Ocean gained nearly 1 million square miles of ice (a 60 percent increase) in 2013 over 2012.
Nonetheless, the Intergovernmental Panel of Climate Change stated: "It is extremely likely that human influence has been the dominant cause of the observed warming since the mid-20th century."
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"Extremely likely" is not a scientific term. It is a judgment. A scientific fact either is or isn't, period.
Patrick Moore, PhD., chairman emeritus of Greenspirit Strategies in Vancouver, Canada, and co-founder of the environmental activist group Greenpeace, stated in testimony before a Senate subcommittee:
"There is no scientific proof that human emissions of CO2 are the dominant cause of the minor warming of the Earth's atmosphere over the past 100 years."
Additionally, he said, "Perhaps the simplest way to expose the fallacy of 'extreme certainty' is to look at the historical record."
When modern life evolved over 500 million years ago, CO2 was 10 times higher than today, yet life flourished at this time.
Then an ice age occurred 450 million years ago when CO2 was 10 times higher than today.
This fact fundamentally contradicts the certainty that human-caused co2 emissions are the main cause of global warming.
Rather than blind acceptance of the outrageous claims of impending doom from global warming, we might do well to take time to look into the motives of the environmental activists promoting it to determine whether they are trying to advance a broader agenda that would give the government more control over our lives.