chemical components / medium by which waste products / greenhouse gas mitigating / chemical composition / chemical weathering / chemical groups / chemical processes / chemical substance / machinery / methane gas / greenhouse gas / hydrogen gas / mospheric chemical dynamics / biochemical machinery / chemical constituents / ionic chemical substances / thermal imaging system / food / energy / /
NaturalFeature
Brazil / Costa Rica / /
Organization
Harvard University / African Union / Princeton University / National Aeronautics and Space Administration / Mars Exploration Rover Mission / Penn State University / /
Person
Jim Kasting / Ray Reynolds / Daniel Whitmire / Andy Knoll / Paul Hays / Jim Walker / Mo Habitable / Carl Sagan / Samuel Taylor Coleridge / George Mullen / /