I think what we need is a good thermonuclear war to bring a nuclear winter to help offset the global warming.
Sounds reasonable. You can start an organization called say, Astrologers for the Thermonuclear Option to Global Warming.
You can use Tarot Cards, Tea Leaves, or Head Bumps for research. Ought to be worth at least a 20 million in federal research grants. Just make sure to predict the destruction of the planet in the next ten thousand years and include the phrase "we're doing it for the children."
You can schedule the first conference at Los Vegas or the Riviera.