A great new challenge from InnoCentive, with a nice hefty prize, all centering around improving natural gas operations. Mercury, which as we all know is highly toxic, is present in low concentrations in natural gas. There are lots of methods to remove it, but they could definitely be better--and that's where you come in. If you can figure out a new idea for removing mercury, you'll win $10,000. But hurry up--there are already 54 solvers engaged with the challenge. The deadline for submission is August 19th. Read about it over at InnoCentive.