Scientists: Time running short before climate change effects are ’irreversible’

时间:2018-10-11 单词数:3050

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Global temperatures could reach an irreversible tipping point in just 12 years if the world doesn’t act dramatically to reduce the amount of carbon dioxide released into the atmosphere, scientists warned in a new report.


The dire assessment puts the spotlight on President Donald Trump and the Republican-controlled Congress. Trump and many of his most ardent supporters in Congress have questioned man-made climate change and the president could remain in office for nearly half the time the scientists say is crucial for action.


The United Nations panel on climate change says the impact of climate change can still be slowed down if countries around the world take unprecedented action to reduce their use of fossil fuels and release less carbon dioxide and other greenhouse gases into the air.


But the United States government has not supported aggressive climate policies under the Trump administration.


President Trump decided to withdraw the U.S. from the Paris Climate Agreement – an accord where countries pledged to drastically reduce greenhouse gas emissions. The current administration has moved to roll back most of the climate-oriented policies proposed by the Obama administration, proposing replacements in some cases which experts said won’t go as far toward reducing emissions.


The Environmental Protection Agency declined to comment on the UN report’s findings on Monday.


The United States continues to lead the world in greenhouse gas reductions having reduced our emissions by 14 percent since 2005, an EPA spokesman said in a statement,


The UN panel’s researchers found that “human caused” carbon dioxide emissions need to be cut by nearly half of 2010 levels by 2030 to stave off the worst effects of climate change. Scientists said “rapid, far-reaching and unprecedented changes in all aspects of society” are required to limit the possibility of irreversible environmental damage.