The largest volcanoes might cause short-term climate change profound enough to reduce agricultural production precipitously in many places at once.

ECONOMIST: Disasters are about people and planning, not nature��s pomp

We understand that to reduce our dependence on oil and the damage caused by climate change, we're going to need more production in the short term, we're going to need more efficiency, and we need more incentives for clean energy.

WHITEHOUSE: President Obama Addresses Business Roundtable

Such an approach may, in the short term, have encouraged some voters to support measures to combat climate change.

ECONOMIST: Climate science