Secretary of State Rex Tillerson sent a cable to all U.S. embassies Friday advising diplomats to sidestep questions from foreign governments over President Trump’s plans to re-engage in the Paris ...

"We want to be productive, we want to be helpful," Tillerson said on the CBS program "Face the Nation." His comments did not amount to a reversal from US President Donald Trump's widely criticized ...

A Dallas federal judge offered no explanations for multiple orders he issued on his own this month in Exxon Mobil Corp.'s battle with Massachusetts and New York Attorneys General. But the effect of ...

If Richard Nixon could go to China, can Rex Tillerson save Paris? It is but one of many questions, some more answerable than others, about President-elect Donald Trump’s choice for secretary of state.

Rex Tillerson, the chief executive of ExxonMobil, speaking at Chatham House in London, said it has become increasingly clear climate change poses risks to society and ecosystems that are serious ...

Former Exxon Mobil CEO and now Secretary of State Rex Tillerson used an email alias to discuss climate change at the company. That's part of a probe into Exxon by New York's attorney general. The Wall ...