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Facebook and eBay are among companies spending to make their data centers more eco-friendly and energy efficient. New software tools helped Facebook reduce energy use at one server farm by 38%, yielding cost reductions of about 24%.

Finelite, a manufacturer of high-efficiency lighting systems, cut its waste production by 84 percent between 2005 and 2012 through using reusable packaging, Sustainable Plant reports. Through such innovations as replacing bubble wrap used to protect products with crinkled paper and so-called lean packaging, the company saved about $27,000 a year in garbage disposal costs, the article says.

The Obama administration's rule leans heavily on renewable energy to meet its goal to reduce carbon dioxide emissions by 32 percent by 2030, which is an increase of 2 percentage points from the draft it released in the summer of 2014. While states have two additional years until they must begin cutting emissions - 2022 instead of 2020 - they are expected to start devising ways to improve their environments, which will focus on shifting to cleaner burning fuels and away from carbon-heavy ones. "The trend we are on will get us there," says Rob Gramlich, senior vice president for government affairs at the American Wind Energy Association, in a phone interview. "As the nation moves from coal to gas, and as it adds more wind, solar and energy efficiency, we will reach that 32 percent target."

The Obama administration's Clean Power Plan rule will require states to begin cutting carbon emissions by 2022. "The trend we are on will get us there. As the nation moves from coal to gas, and as it adds more wind, solar and energy efficiency, we will reach that 32% target," said Rob Gramlich of the American Wind Energy Association. To comply, states can choose among options including boosting renewables, improving heat rates for coal-fired steam generators, and using more nuclear energy and lower-emitting natural gas. Forbes (8/4)