Seriously! My lab does plant root growth modeling, which (like protein folding) is a 3D morphology prediction problem. Tweaking crops for even a small increase in carbon uptake and sequestration in soil (e.g., via deeper or longer roots) may be able to cut a sizeable chunk out of annual CO2 emissions[0], but almost nobody's working on it because it doesn't have direct applications to human healthcare.

[0]: http://www.nature.com/articles/nature17174