Local food proponents often claim that food grown close to home helps prevent global warming because it requires less fossil fuels to transport, generating fewer greenhouse gas emissions than conventionally produced food. But just how green is local food?
Ninety percent of all existing biomass power plants use wood residue and there are currently 115 power plants in development that will burn biomass to generate electricity. But just how renewable is biomass energy?
As the United States searches for sources of alternative energy and a means to reduce its production of greenhouse gas (GHG) emissions, solar power plants have emerged as a leading candidate to address both of these problems. While these plants do indeed provide an additional means of producting energy that could potentially reduce the amount [...]
State of the Planet is a forum for discussion on varying viewpoints. The opinions expressed by the authors and those providing comments are theirs alone, and do not necessarily reflect the opinions of the Earth Institute or Columbia University.
