I suggest looking into advanced weathering: http://www.innovationconcepts.eu/res/literatuurSchuiling/olivineagainstclimatechange23.pdf http://www.innovationconc

I suggest looking into advanced weathering: http://www.innovationconcepts.eu/res/literatuurSchuiling/olivineagainstclimatechange23.pdf http://www.innovationconcepts.eu/res/literatuurSchuiling/oli... According to that pdf we can offset all human emissions for $250 billion per year by mining/crushing/spreading olivine rocks. I know planting trees has been in the news lately but if we want to tackle climate change and especially ocean acidification we should accelerate the same natural process that brought the earth back into equilibrium after mass extinction events occurred. In the past it wasn't trees that did it, it was weathering of exposed limestone/olivine rocks that sucked up excess carbon.