Originally Posted by jane_vernon
And if you think humans have not had an impact on the planet because we are so small - Have a look at the changes in the carbon dioxide in the atmosphere since the industrial revolution - It has gone up exponentuially - And this can only be attributed to humans and this has increased greenhouse gases which has reduced the ozone layer (especially over Australia and Antarctica) which leads to increased UV light getting into the atmosphere which leads to warming.
Maybe cats can take over the planet??
I just have to add something here. Green house gases do not damage the ozone layer. Other chemicals, such as refrigerants and aerosol propellants are the cause of this. Also, UV rays do not cause global warming or heating. Yes, UV rays can burn you, but they do not produce heat. Infrared light is what causes heat and carbon dioxide gases help hold this heat in, instead of letting it escape back out into space. With that said
I am not so sure we have anything to do with the increase of hurricanes yet. There are many factors that influence a hurricanes formation, not just the warm water. Yes, a hurricane must have warm water and the warmer, the better. But, a hurricane will not form, just because there is warm water. There are other major factors that will increase the chances of the storms formation, none of which have anything to do with how warm the water is or global warming. The fact that we had so many storms this year means nothing, other than it has been a busy hurricane year. I can remember back in the 70's, when we had such cold temperatures during the winter, that people started thinking we may have been heading back to an ice age. I remember having no school for a week, because of the extreme cold and huge amounts of snow. The 70's also saw snow fall for the first time in Miami Florida!! Did we have another ice age? Of course not. Something to look for however, is not in how many hurricanes we get, but how many strong
hurricanes we get. This year DID see an increase in the number of Cat 5 storms. Could this mean anything? It is to early to say. If the next couple years also show a continued increase in the number of cat 5 storms, then I would say yes, we may be causing this problem with global warming. Here is something else to think about. I have heard some scientists argue that with global warming, we would have an increase in the ocean temperatures. With this increase in water temperature, there would also be an increase in the amount of water vapor in the air, whcih would/could lead to an increase of cloud cover over the earth. This increase in cloud cover would actually reduce the amount of sunlight and also reduce the overall temperature of the planet. Something else to think about
I do agree however, that we must start now, to put an end to such global destruction of our environment.