The future of geoengineering holds high possibilities with all the potential designs that are available. In fact oceanographer, John Martin feels that his idea can save the earth. He stated “Give me half a tanker of iron, and I will give you an ice age.” His idea is called iron fertilization, which essentially is the process of dumping iron into the ocean in order to create a special form of plankton that will absorb co2 out of the air. This could cool the earth's temp down to a safe temperature and keep it there for many years. This isn't the only idea, in fact, U.S scientist have came up with the albedo modification which blocks the amount of sunlight that comes down. This will also reverse the effects of global warming and keep the earth at a safe temperature.
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