The bill also includes a minimum price for carbon emissions and the setting of feed-in tariffs for individual consumers who are able to generate their own renewable energy supplies.

BBC: Green economy debate

Congress thinking of capping greenhouse-gas emissions and requiring a minimum use of renewable fuels and "clean tech" investments that will cost millions, if not billions, of dollars.

FORBES: 10 Energy Executives To Watch

By eliminating venting, methane emissions can be kept to an acceptable minimum.

ECONOMIST: The ��golden age of gas�� could be cleaner than greens think

New biofuel installations will have to meet a minimum 60% threshold in terms of their efficiency in reducing greenhouse gas emissions.

BBC: EU acts against harm from biofuel crops

Congress is considering legislation that would effectively tax utilities for their carbon emissions, and the House recently passed a bill that would require that power companies use a minimum amount of renewable energy.

FORBES: Magazine Article