increased, America's dependency on foreign oil has decreased. The total consumption of imported oil has decreased from 57% in 2008 to 45% in 2011, which is the lowest it has been for about 20 years. President Obama made strict guidelines to standardize fuel economy in vehicles, especially passenger vehicles. Statistically, vehicles with fuel economy benefits improve the environment and lower fuel costs. The Obama Administration finalized a new regulation that would require commercial trucks, vans, and buses produced in the years 2014–2018 to be tested for national fuel economy and greenhouse gas emission standards. Barack Obama has also made investments to manufacture efficient batteries for hybrid and electric vehicles. The Administration is funding research that would help increase the use of natural gas and reduce oil consumption. Adjusting to climatic changes Another goal that President Barack Obama had in regards to efficient energy use was to reduce emissions that are unsafe to the environment, which in turn would result in climate change and cause air and water pollution. He made efforts to gather other world leaders, in December 2009, and have them agree to make this an international endeavor. It has been noted that the Obama Administration has made the largest investment in the American history to have clean energy through renewable power generation. One of the ways to ensure this goal is by monitoring greenhouse gas emissions from direct and indirect sources. President Obama has started a Climate Change Adaptation Task Force, to aid in policies and programs on a Federal level. With the use of interagency decisions can be made on how to protect the environment and local communities against changing climatic conditions. The agency also created strategies that would shield wildlife and freshwater resources. Protecting the environment as a whole On the grand scale, President Obama is taking measures to protect the American soil, the bodies of water and the atmosphere from severe pollution and other problems caused by inefficient energy use. He plans to have an interagency collaboration on a Federal level so that the environmental issues facing America could be solved or even brought down. The Recovery Act of 1999 has programs and projects that would entail the protection of our environment through agencies including the Environmental Protection Agency and Department of Interior. These agencies oversee funding for many big projects like those that promote going green. The Act also invests in advancing in technology