again you just do not get it, 1,000 years ago Greenland was warm. go back farther the Sahara was green. go back farther where I live was under a lot of ice.
but go ahead believe in the scam of man made global warmin.. er climate change.. which used to be called global cooling in the 70s.
Climates always change. Earth has self-regulating mechanisms to ensure that. However, Greenland wasn't warm a thousad years ago, more like a few hundred thousand. And yea, the Sahara, a very long time ago, may have sat at a point on Earth where life was abundant. Climates always change. That's not a disputed fact. I agree; they do.
But, out climate is changing to a rapid degree for which natural global process (without the mass pollutants of industry) cannot account for. Now, this is not itself an issue from a ''the world always changes climate'' perspetive. We won't destroy planet Earth by burning fossil fuels ad continuing to release CO2. What will happen is that the climate will change more dramatically than it should, and in a few hundred thousand years, it will have rebalanced itself, as CO2 dissolves in the bigger oceans formed from melting ice-caps and as ice begins to slowly reform at the poles.
But
that world shouldn't be seen by natural non-human means for hundreds of thousands of years. What we are doing is
accelerating the natural climatic shifts of the planet, and the problem with that is that it will be
catastrophic for
our race, and for various others.
So yea, while climates do shift and change, while the world's dry or wet areas are not eternally dry or wet, what we are doing, by being environmentally irresponsible, is catalyzing a dramatic, acute shift in the Earth's weather systems and climate that will become increasingly detrimental to the survival of our species.
The reason there is a confusion about ''global warming'' terminology is this;
CO2 holds heat. More CO2 in the atmopshere means more retention of heat. That retention of heat will cause the ice caps to melt in summer months, and if they do, and there is no sheet ice available to maintain temperatures for more substantial sheets to form in winter months, then that cold water will flow freely throughout the world in from the poles. That cold water will alter our currents, make our seas colder, cause more severe storms, decimate landmasses, (for instance the entire Eastern Seaboard would virtually disappear). Now, that means less land mass, and more water. Water dissolves CO2.
So, the ice caps have melted because of a planet too hot (from excess CO2 and heat retention), the seas have risen, and the oceans now dominate the planet more than they currently do. Seas dissolve carbon dioxide, so the carbon disoxide would dissolve eventually and we'd be left with the same or less ability for global heat retention that we do now.
This means that tropical areas' flora will generally die off due to increasingly cold temperatures, trees will take CO2 and oxygenate it (a large majority of the world's mammals will struggle to survive the cold, including us), there'll be massive population decreases and we'll have eventually, an over-oxygenated atmosphere.
Oxygen and nitrogen (the man gases in the atmosphere) do not absorb radiation and aren't particularly good at heat retention, so the Earth gets cooler.
All this is of course, just a matter of time in natural progression. Earth goes throught climate cycles -- ice ages -- periodically and naturally. The point is, we are massively accelerating the process, and in the next century we can expect mass famines, droughts and displacements because of it.
If we don't find environmentally sustainable solutions to meet our energy needs, we risk causing huge unnecessary displacements, famines, deaths, floods and storms absolutely unnecessarily and, most importantly, far prematurely.
