The United States under new President Joseph Biden has joined the growing world  movement  to combat climate change. In his first week in office, he called for a “whole-of-government approach” to achieve this end. He ordered all federal agencies to purchase  electricity that is pollution-free, and also vehicles with zero emissions. And he directed the Department of Interior  to  hold  any action for new oil and natural gas leases  on public lands and offshore. He set  two aggressive goals –  the US must have completely clean electricity by 2035. There must be         net-zero  emissions economy-wide by 2050. With these definite dates set for two specific programs,  the US has joined China which has vowed to stop all  carbon emissions by 2060, and Japan which set its own deadline of 2050 to end all emissions of greenhouse gases. The European Commission has also  established the European Climate Change Program for 2000-2004, calling  on  European Union countries to cut their collective  greenhouse emissions  by  55 percent  of  1900 levels by 2030. During  the Trump administration, the US had  rejected the very idea of climate change as being caused by worldwide carbon emissions. One of then President Donald Trump’s first acts was to pull the US out  of the Paris Climate Change Agreement, reached by all of the world’s  nations,  including the Philippines, to cut down on  carbon emissions  to keep world temperatures from rising beyond  2 degrees over pre-industrial levels. One  of President Biden’s acts upon his assumption to office last January 20 was to return the US to the Paris Agreement. He named two climate officials – White House National Climate Adviser Gina McCarthy and Special Presidential Envoy for Climate Change  John Kerry who will represent  the US  on the world stage. In addition to these two, President Biden named former Rep. Deb Haaland to lead  the  Department of the Interior, Michael Regan to lead the Environment Protection Agency, and former Michigan Gov. Jennifer Granholm as secretary  of  energy. An Interagency Working Group on Coal and Power Plant Communities and Economic  Rehabilitation  will be  formed to seek ways to prevent further environmental  damage in communities affected by coal mining, oil drilling, and fracking, and see if some of these areas can be converted into centers for renewable energy. Environmental  issues  had  been  left to a few agencies of government in previous US administrations, including  the  Environmental  Protection Agency, the Department  of Energy, and the Department of Interior. The White House said  the new Biden administration  will get other departments into the  total  effort—the Department  of Housing and Urban Development,  to implement new standards for new construction;  the Department of Transportation,  to set up more charging stations  for electric vehicles; and the Department of Agriculture to work with the nation’s farmers to reduce carbon emissions from livestock and soils. The US economy is still heavily dependent  on oil, natural  gas, and coal, but it is now  trending towards  renewable energy. The new Biden administration  has  set decarbonization targets and has mobilized  virtually the entire government to achieve them. Its efforts, together with those of many other nations, will go a long way in stopping the pollution  of  the  atmosphere which threatens the whole world with rising ocean levels, more wildfires in so many parts of the globe,  and more destructive hurricanes and typhoons.