Did we humans contribute to the Texas heat wave? It's complicated

EPA Administrator Scott Pruitt speaks in the Rose Garden of the White House in Washington with President Donald Trump

The conclusions contained in a draft federal report on climate change are unequivocal: Human-induced global warming is real, and left unchecked, the consequences could be dire.

The report said the frequency and intensity of heavy precipitation and extreme heat occurring in most of the world is consistent with expected physical responses to a warming climate, which will continue to intensify such weather events. It also says it's possible to connect some extreme weather events to climate change, a distinction climate scientists have traditionally avoided for singular events. According to the Times, "Scientists say they fear that the Trump administration could change or suppress the report". According to the document, U.S. citizens are now feeling the effects of climate change, a phenomenon questioned or minimized by the president himself and members of his cabinet. It has not yet been finalized for public release by the Trump administration.

Trump, for his part, has called global warming a "hoax" and "bullshit" in the past, although he's skirted the topic of climate science since becoming president.

If current trends of greenhouse gas emissions continue, temperatures across the US will likely continue to rise, with a projected increase of 5 to 7.5 degrees Fahrenheit (2.8 to 4.8 degrees Celsius), The New York Times reported.

In addition, several of the report's authors, who spoke to The Associated Press on condition of anonymity, said they were unaware of any effort by the White House to suppress or censor the scientific study. A copy of it was obtained by The New York Times.

After taking over as president, Trump pulled the USA out of the Paris Agreement on climate change, saying it unfairly favoured some countries like India and China.

Envoys have been instructed to quash speculation the U.S. wants to re-open a hard-fought worldwide consensus on tackling climate change.

"One of the clearest signals that is summarized in this report is that California is already a warmer place than it used to be", said Daniel Swain, a climate scientist at UCLA whose work is cited in the report.

The Internet Archive, a website that archives content published online, says it downloaded the report from the Environmental Protection Agency's website in January 2017.

When one day (soon, please) we look back on the Trump administration and the hubbub over leaks, it may be that the most important and far-reaching "leak" was not really a leak, was not illegal and had nothing to do with the Russian Federation scandal, war or any rogue regime.

The assessment has generally been released every four years under a federal initiative mandated by Congress in 1990.

Those fears likely stem from members of the administration who have expressed doubts about climate change. Last Friday Tillerson sent a cable to embassies that also directs diplomats to tell foreign officials the United States is prepared to help facilitate fossil fuel transactions in other countries - despite the unanimous agreement that climate change comprises one of most significant threats to existence humanity has ever encountered.