The United States Environmental Protection Agency says tebuthiuron is very prone to leach into groundwater.

ECONOMIST: Colombia

Brian leads cross-departmental, tactical management plan teams working on environmental improvement -- in the areas of: engagement, alternate funding, utility conservation, waste reduction and recycling, fleet emissions reduction, green purchasing and sustainable development -- leading the district's indoor air quality program recognized by the United States Environmental Protection Agency as a National Model of Sustained Excellence.

WHITEHOUSE: Brian kasher | The White House

So it is with the National Aeronautics and Space Administration, the United States Geological Survey, the Environmental Protection Agency, and the Nuclear Regulatory Commission (NRC).

FORBES: Why Jaczko Leaving The NRC Is Good for America

The government mandates the amount that is produced in the United States each year, and the Environmental Protection Agency recently granted a waiver, allowing the percentage of ethanol that can be used in some cars to rise from 10% to 15%.

CNN: Ethanol: Is it friend or foe?

For the past 4 years, Intel has been recognized as the largest voluntary purchaser of green power in the United States, under the U.S. Environmental Protection Agency's Green Power Partnership program.

ENGADGET: Intel wants to have conflict-free processors by the end of 2013

Data centers account for about 1.5% of total electricity consumption in the United States, according to a 2007 report from the U.S. Environmental Protection Agency.

CNN: Apple's green image continues to be dirtied

Despite a BPA investigation by the Environmental Protection Agency, and other numerous studies, the United States still does not have a nationwide ban of the chemical.

CNN: Ban unsafe chemical from baby bottles and cups

Industrial facilities in the United States generate 7.6 billion tons of nonhazardous waste annually, according the Environmental Protection Agency.

FORBES: How GM Makes $1 Billion A Year By Recycling Waste