Re: ALIENS ARE REAL, REVEALS FORMER ASTRONAUT

On Jul 28, 5:50 pm, "M104gal...@xxxxxxxxx" <M104gal...@xxxxxxxxx>
wrote:

Like those who claim to believe that incontrovertible evidence exists
that the most significant cause of current global warming is man-made
CO2?

Carbon dioxide in the atmosphere certainly can cause global warming,
by a simple and well-understood mechanism - it is transparent to light
and short-wave infrared, such as comes from the very hot Sun, but it
absorbs long-wave infrared, such as emitted by the warm Earth, and is
warmed by that. So, if there is more carbon dioxide in the atmosphere,
even by a tiny amount, the Earth will gain more heat each day than it
radiates off to space at night, until the Earth becomes hotter.

The vast majority of scientists who are studying the question agree
about the problem of man-made greenhouse gas emissions. Unlike
cyclical changes in the Earth's orbit, they are a contributing factor
that is under our control, so if we don't want the world to get
warmer, they are what we have to change.

There are a few dissenters; some are generally believed to be
eccentrics, others are transparently shills for industries that might
be affected adversely by a concerted campaign to stop global warming.

Of course, drastic cuts to energy consumption would have bad human
consequences too - bad enough that we might have to tolerate global
warming, and, say, the loss of the Great Barrier Reef to oceanic
acidity, if we had no other choices.

But we do have another choice. It's called nuclear power. So if you
want to criticize people concerned for the environment, you should
direct your fire at the *real* crazies and fanatics in the
environmentalist movement.

John Savard
.

Relevant Pages

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  • Re: Whats Really Heating Up the Planet?
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