Word: co2
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...coral are left weakened and defenseless against disease. Increased carbon dioxide concentrations in the atmosphere also lead to more acidic seas, which impairs the ability of corals to form their skeletal reefs. (In acidic water, the reefs simply dissolve.) "Corals appear to be particularly sensitive to the buildup of CO2," says Kent Carpenter, the lead author of the Science study and the director of GMSA. "The corals will be the canary in the coal mine in terms of the effect climate change will have on our oceans...
...could make the entire ocean into a marine park and still lose the coral, if we can't stop climate change. As temperatures rise in the ocean, bleaching events will become more and more common. According to a study published in Science late last year, if CO2 levels continue rising unabated, by 2100 coral could be utterly extinct. "If we can't contain the CO2 problem and enact strong coral reef conservation measures, we will lose them," says Carpenter. The depressing fate of the coral could be a reminder that climate change has the power to undo all the work...
...treatment plant on Earth, built on shorelines around the world. They would draw out 180 billion metric tons of seawater each year, split the salt, keep the acid and pour back the water. And even that would remove just 10% of the more than 30 billion metric tons of CO2 we put into the air annually...
...named Global Research Technologies (GRT). Developed by GRT president Allen Wright and Columbia University physicist Klaus Lackner, the system consists of 32 hanging plastic panels, each 9 ft. high and 4 ft. deep (2.7 by 1.2 m), spaced about half an inch apart. As air wafts through those spaces, CO2 sticks to the proprietary plastic the panels are made of. The device in Tucson is now scrubbing about 50 lb. (23 kg) of CO2 a day out of the air. "If we built one the size of the Great Wall of China," Wright says, "and it removed...
...planet. And what do you do with the carbon you collect? For starters, you could sell captured greenhouse gasses to, well, greenhouses; farmers pay up to $300 per ton for the stuff to help plants grow. If the scrubbers were deployed on a grand scale, though, lakes of liquid CO2 would need to be pumped into deep underground reservoirs. A more exciting--if more remote--possibility is to combine CO2 with hydrogen and convert it back into fuel that cars could burn again. This would release more CO2, which scrubbers would pull back out of the air, in a closed...