Seeding algae They argue that a series of massive volcanic eruptions spanning nearly all of present-day Mexico, as well as parts of New Mexico, Arizona, Colorado, and Idaho launched vast amounts of ash into the atmosphere. All that stuff in the atmosphere is going to block sunlight, says Cather. But theres no evidence that it lasts more than a few years, maybe a few decades with a big flare-up. So we thought, what about iron fertilisation? As ash rained into the worlds oceans, the teams theory goes, it brought in millions of tons of iron that fertilised a feeding frenzy of algae. The photosynthetic creatures harnessed sunlight, nutrients and carbon dioxide (CO2), a potent greenhouse gas, sucking billions of tonnes of it from the atmosphere and chilling the planet.
Posted on: Mon, 18 Nov 2013 06:11:37 +0000
Trending Topics
Recently Viewed Topics
© 2015