3
Computare
Postulated Problem
•Greenhouse gases (GHG) from fossil fuels
–Warming the atmosphere
•Is climate change happening?
–Hard to prove
•Postulate we must control GHG
–How can we manage?
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We’ve all heard time and time again that greenhouse gas from fossil fuel is warming the atmosphere and action is needed urgently.

I’ve been hearing that for 15 years now, since I began my watch on the issue. Climate experts told us in the early nineties that warming evidence was still uncertain.  Another one or two decades would provide proof. The evidence is still weak and the scientific debate goes on.

For the sake of evaluation we can postulate that  greenhouse gases must be controlled. Lets make that assumption  and move forward to consider how they might be managed.