The science is pretty clear at this point: global warming is caused by human activities. What we should have done is "proven" that human activities such as over

The science is pretty clear at this point: global warming is caused by human activities. What we should have done is "proven" that human activities such as overreliance on carbon fuels wouldn't be a problem, before we caused this kind of havoc. And dumping lime in the oceans? An ounce of prevention will be worth a ton of lime cure.