Low CO2 levels are causing the return of the ICE AGE. Unless we get rid of all these high mileage cars and catalitic converters we will freeze. We must burn more fossil fuels. All the plants are going to die and we are going to starve because of reduced carbon dioxide emmissions. Unrenewable energy is the answer. We need reverse carbon credits for those with too small of a carbon footprint...
LOL!!!!
Explain how the earlier ice age happened.
(I bet you could actually turn this into a plausible argument, then sit back and watch the environmentalists and global idiots heads explode.)
The easy way to explain Ice Age conditions is to posit an ON PERIOD where there's 2 mile deep ice on North America and an OFF PERIOD where there's an interglacial period like we have come to know and love.
The harder way is to note that it's not all ice all the time, nor is it warm all the time. The cycle continues throughout the period of performance ~ and sometimes we have a lot of ice, sometimes a moderate amount, and sometimes it all goes away, but even then there are times when it starts to come back.
Plus, we have TWO major controlling elements. One is North America and the other is Antarctica. As you will notice Antarctica will has thousands of feet of ice but it doesn't have a 2 mile deep ice sheet. Neither does North America. Both areas have sea ice, either in the Arctic Ocean basin or around Antarctica.
We need to worry when Antarctic sea ice increases its coverage AND when the ice gets deeper (which we'll know because the glaciers flowing to the sea will speed up).
I think that already happened.