Every scientist understands that humans influence the climate. Cities are well known to be much warmer than surrounding countryside. Chopping down forests changes the climate. Greenhouse gases obviously influence the climate. The most common greenhouse gas is water vapor, and everyone understands that humid climates are different from dry climates.
So the 97% of scientists who believe in man-made global warming is actually closer to 100%. The problem is that Democrats claim that 97% of scientists believe global warming is imminent and dangerous. The repeated that over and over again this week, yet there is no evidence to back up their claim.
As far as I know, there has never been any survey done asking a broad group of scientists if global warming is dangerous. That certainly isn’t a word which comes up very often in scientific literature.
In 1999, NASA’s James Hansen (the worlds best known climate alarmist) wrote:
Empirical evidence does not lend much support to the notion that climate is headed precipitately toward more extreme heat and drought
A few months ago, the American Meteorological Society took a poll of its members and found that only 52% believe global warming is primarily caused by man. Among professional forecasters, the number was even lower.
Barely half of atmospheric scientists believe global warming is primarily due to man, much less imminent and dangerous.
The Democratic claims of scientific support for their position – are 97% propaganda, and it forms the cornerstone of their argument.