The tweet attracted dozens of complaints from other Twitter users, many of them pointing to the widely suspected use of chemical weapons by the regime of Syrian President Bashar al-Assad.
Reports from the UN climate conference, COP23, now being held in Bonn, Germany, Syria announced that it will be committing to the Paris Climate Agreement, a move which will leave the United States as the only country to remain unsigned.
The Bonn meeting, from November 6-17, is seeking to write a detailed "rule book" for the Paris agreement, including details of how to report and check all nations' greenhouse gas emissions. "The U.S.'s stark isolation should give Trump reason to reconsider his ill-advised announcement and join the rest of the world in tackling climate change".
When the pact took effect in 2016, environmental groups and political leaders heralded it as a critical step in trying to reverse man-made ravages on the global environment.
Out of the United Nation's 193 member countries, only two others weren't signed on to the agreement as of this fall: Nicaragua and Syria. Syria had been the last nation, other than the USA, not to be a part of the agreement.More news: Legislators Criticize the US Decision on Nicaraguan Immigrants
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This makes the United States the only country on the planet not a part of the climate deal.
White House spokeswoman Kelly Love said the United States hasn't changed its position on climate change and pointed to a statement by the Trump administration when Nicaragua joined the agreement.
Syria is also joining, and announced its move Tuesday at climate talks in Bonn, Germany, Der Spiegel reported.
The Trump administration will not be able to formally extricate the US from the climate agreement until 2020. "We have witnessed extraordinary weather, including temperatures topping (122 degrees Farenheit) in Asia, record-breaking hurricanes in rapid succession in the Caribbean and Atlantic reaching as far as Ireland, devastating monsoon flooding affecting many millions of people and a relentless drought in East Africa". The assessment, compiled from the research of several federal agencies, concluded that climate change was real and that human activity was nearly intensifying its impact, The Washington Post reports.