Why You Should Be Skeptical Of Global Warming Alarmists

When it comes to the global warming debate, both alarmists and critics agree on one thing: The earth has warmed by roughly 0.8 degrees Celsius over the past 150 years. It’s the cause of this warming, however, that remains in dispute. And while the public is constantly bombarded with messages about the evils of carbon dioxide emissions, there are actually compelling reasons to believe that contemporary global warming has been driven by rising solar output, not carbon dioxide.

To start with the basics, when the sun’s ultraviolet radiation strikes the earth’s surface, it is re-emitted as heat in the form of infrared radiation (IR). Carbon dioxide is one of the atmospheric gases that absorb and re-radiate this heat.

Initially, CO2 is particularly effective at absorbing IR. In fact, in concentrations as small as 0.002 percent of the atmosphere (20 parts per million), CO2 starts intercepting as much IR as it can.

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