That's one of the many reasons I've always taken the Global Warming panic with a hefty grain of salt.
Now, I'm no tired cliche expert but the word "hefty" takes that sentiment in the exact opposite direction of its understood meaning. To take with a grain of salt, a small granule of sodium homogeneous to other granules of salt, largely unremarkable. Kind of defeats the purpose to single one out as being hefty when the whole point of using the cliche is to downplay the importance of certain information.
However, climate change is certainly happening. We are watching the polar ice caps melt before our eyes. Pretending nothing is happening is just as foolish as blindly following the scientists who tell us we're doomed. It behooves us to study what's happening to figure out why, so that if there is a problem we can do whatever we can to fix it before it becomes a threat.
It's certainly happening? And we know that by not blindly following these quack scientist with all their stupid math and data and logical inferences.
At least we have other reliable sources from which to gleam our information from. Like Twitter and PolarBearhumper.com. Media seek truth, this is fact. They've been truth-seeking like Salem which hunters since 1623. They're not concerned with ratings or fostering an environment of subtle panic to increase viewership. Nope, most news stories are designed to make you feel good, comfortable; because thats what sells.
That whole thing in Haiti, the earthquake where the media ran the astonishing figure of 500,000 dead, they're sorry about that. Point is, this Global Warming crisis is so damn scary. If the media are going to spend time hurting their ratings by scaring the bejesus out of people, they must be saying something really important, historically speaking, of course.
One only needs to look one planet closer to the sun to see what runaway greenhouse effects can do to an environment. Whether Venus could ever support Earth-like life in the past is irrelevant - due to runaway greenhouse effects it can't now. It's unlikely that'll happen to Earth, but why risk it?
Did you just use Venus as an argument in support of a global warming theory here on earth? There are certain factors you might have failed to consider in your example. Namely. and i would really suggest you consider this as I'm almost positive that it could have something to do with any sort of global warming phenomena on Venus -- Venus is the second-closest planet to the Sun. Just thought I throw that out there.