Professor David Keith: A Case for Climate Engineering (ONE of TWO)
Harvard Climate Scientist David Keith makes the case that global warming and CO2 pollution have become so severe that dramatic measures have to be researched immediately and applied by 2020. He is suggesting spraying particles from airplanes into the stratosphere to create a haze that will reduce solar radiation.
He names possible substances, including aluminum. However, his material of choice is sulfuric acid because it mimics volcanic explosions. He admits that such global intervention will damage the life protecting ozone layer, cause droughts and floods and will do nothing to resolve the expanding damage to the planet by still rising CO2 emissions.
He says that we need to artificially cool the earth because we are too slow to cut back on CO2 [ . . . ]
Podcast: Play in new window | Download (Duration: 29:00 — 19.9MB)