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Or, you know, maybe we could just emit less CO2 to start with.

To be clear, I'm all for research about carbon sequestration, but it should not be an excuse to keep polluting irresponsibly. On the long term, we simply can't get away with compensating all our big negative impacts with big positive ones - how about introducing some moderation in our lifestyles instead?

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If we want to avert a bad scenario, we need to both drastically reduce CO2 emissions and find a way to sequester the CO2 currently in the air (either through technological means, or through something like making big tracts of land into forests). Just sequestering is unlikely to be enough, unless it is extremely efficient.

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