What is the dart frog toxin allegedly used to kill Alexei Navalny? The toxin, epibatidine, can be found in frogs in the wild in South America or manufactured in a lab. Source
Trump eyes Venezuela visit – but obstacles to his oil plan remain The US president wants American energy firms to start extracting the crude but they are reluctant. Source
Six possible effects of Trump’s climate policy change The announcement on Thursday removes the legal bedrock for much of US environmental legislation. Source