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Broecker: 'What we need are tougher measures against climate change'
Date:6/15/2009

ge it will", says Broecker firmly. The landscape will change, because plant species will have to migrate to cooler regions to escape extinction. Arid zones will become even drier. The shortage of water, and the social and political conflicts it gives rise to, will be among the big problems of the future.

What will not change is our relationship with fossil fuels. "We will continue to depend on them, meaning CO2 emissions are bound to increase because renewable energies will not suffice to replace them, especially in poor countries. We need to encourage renewables all we can, but I don't think it will be enough", Broecker concedes. "It may take another 50 years before they really take off, so we need a stop-gap solution".

For Broecker, the best hope lies with a technology still at the experimental stage: carbon sequestration and storage. "The idea is to find a supplement to renewable energies, not an alternative. But we need to set to work now on carbon sequestration. We need to learn how to do it in a way that doesn't damage the environment and at an energy and economic cost that stands within the bounds of reason".

Despite everything, Broecker believes that "the next hundred years will be very interesting. I'd love to be around to see what happens. The late Roger Revelle said that this was mankind's greatest geophysical experiment, and he was pretty much right. Some changes will be good, and others bad...".


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Contact: Javier Fernandez
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Source:Eurekalert

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