Interestingly, you can't get a scientist to commit to global warming being "catastrophic" - as in CAGW.
So that relegates it to the area of interesting scientific facts that will have little affect on our lives. It is the non-scientists like the MSM and Al Gore that have vested interests in claiming CAGW will kill us all. In both cases, follow the money.
They are being encouraged by governments to think like they do. That is one of the main, unstated, reasons for the IPCC Assessment Reports. The part that everyone reports on is written mainly by politicians and not scientists. It is being used just like terrorism.
Terrorism is often perpetrated by your own government as a pretext for introducing anti-terrorism laws. These usually enable restrictions on personal liberty that no-one would pass under normal circumstances.
Climate is the same. We are warned of islands being underwater then they introduce a Carbon Tax, for instance. The advantage of a global tax is that it will need to be administered globally. Coincidentally, they already have the UN and the World Bank just waiting to collect our hard-earned cash to finance ... finance what exactly?
Like all new taxes they try very hard to minimise their effects. Words like minimal, small, temporary and revenue neutral are common. Then, once the foot is in the door, the IPCC will unveil a new crisis, the tax will need to be increased and we will be so scared that we will let them. Thus the constant ratchetting will have begun.
The money will eventually go towards funding the UN as the One World Government it was always designed to be. The EU is just one small step along the way of depriving countries of their sovereignty and democratically elected governments. This is a long term plan.