tjh290633 wrote:XFool wrote:tjh290633 wrote:The Earth is a self-regulating system. It has to cope with variable output from the sun and always has done . One day in the near future we shall go back into a cycle of global cooling. They come and go. Then what will be the logic behind Carbon Zero?
And in the long run we are all dead etc. etc. Meanwhile...
BTW. The Earth may or may not be a self-regulating system but show me the small print where it states all such self-regulation will be to the exclusive benefit of Homo Sapiens.
The environmentalists are principally concerned with carbon dioxide. If the concentration rises, then plant growth is enhanced and more is dissolved in the oceans.
The only mass extinction was that of the dinosaurs, caused by a heavenly body striking the earth. Rises and falls in carbon dioxide over the last few millennia have had less effect on the climate than the variations of energy from the sun. Human life an d its predecessors managed to survive all that.
TJH
The one thing that really bothers me in all this is deforestation. For example, the quite recent flooding in Pakistan which lead to a huge hue and cry in the media about climate change. Fact is since independence, Pakistan has deliberately removed most of it's tree cover. The population has exploded and the result is not a big surprise. The country floods at the drop of a hat. Yet not a great deal has been said in the media about deforestation of Pakistan. Yet there's been plenty of call for more money to be sent there though. Money isn't going to fix anything.
Definitely, in my eyes, the biggest challenge the world faces today is two fold, deforestation and over population. One is usually a result of the other. Chop down all the trees and we break the carbon cycle.