Agencies, Washington :US President Barack Obama unveiled a major climate change plan on Monday aimed at a large reduction in greenhouse gas emissions from America’s coal-burning power plants.”This is the biggest most important step we’ve ever taken to combat climate change,” said Mr Obama, while announcing his ‘Clean Power Plan’, which is the final version of regulations by the US Environmental Protection Agency.United Nations Secretary General Ban Ki-moon praised President Obama for his “visionary leadership,” which showed the US “determination to address global warming”.Take a look: Responding to climate changeIn a televised speech from the White House, the US president warned that “no challenge poses a greater threat to our future” than climate change.He said levels of carbon dioxide in the atmosphere today were the highest they have been in 800,000 years.Under the plan, the US administration will require states to meet specific carbon emission reduction standards.
