What would it take to reverse global warming instantly?

Question

What would it take to reverse global warming instantly?

Answer 1

Its not that easy to control climate.

You could pump out a load of sulphur aerosols into the atmosphere, but this would worsen the effects of acid rain. You could try and increase cloud cover by releasing more water vapour, but you'd need to release a lot to overcome the water cycle and it also acts as a greenhouse gas anyway.

If you somehow manage to cause re-growth of ice and snow-covered ground, then we could reach the tipping point bringing us back to the ice age (but that isn't ideal either). A mega erruption (from a supervolcano such as L. Toba or Yellowstone) would probably trigger an ice age, but we have no idea when and if they'll errupt, and they'll cause other problems when they do anyway.

There seems to be strong evidence man /affects/ climate, but no one with common sense would claim that he controls it.

Answer 2

We cannot instantly reverse global warming.  Trees and other photosynthetic organisms like algae are the only answer, but they take a while.  Despite what you may hear, sequestration underground of CO2 is bad.  It brings the oxygen that the Carbon had to bind to to make CO2  down with it, which is bad.  The trapped CO2 can also escape from the ground and asphixiate people.  So plants are the only answer.  It cannot end overnight.

Answer 3

The sun is the cause of warming so with the ongoing change in sun spot activity it will reverse all on its own.

Answer 4

a big comet

Answer 5

we cant reverse global warming. its reality. and we cant stop it either, what we can do is choose alternative energy to reduce cfc's .

god would be able to reverse global warming.

but for a reality. not once

Answer 6

It's impossible. Even the instant eradication of all human life and pollution causing machinery and chemicals wouldn't do it. It would still take years for the system to recover.

Answer 7

A miracle. One along the lines of the sun standing still in the sky so Joshua could finish his battle.

Don't hold your breath.

Answer 8

Divine intervention. Possibly a really big black hole colliding with us.