IUCN Red List American actor Leonardo DiCaprio and Mexican president Enrique Peña Nieto meet to discuss the protection of the Vaquita porpoise.
Left the climate accord The state of Hawaii becomes the first state to enact a law, to document sea level rise and set strategies to reduce greenhouse gas emissions, that aligns the state's goals with the Paris climate accord. Governor David Ige says the islands are seeing the impacts of climate change first-hand.
Russian interference in the 2016 United States elections James Comey, the former FBI Director who was dismissed by President Donald Trump last month, appears before the United States Senate Select Committee on Intelligence. Comey says he believes he was fired because of the FBI investigation into the possible collusion between President Trump's campaign team and Russia's interference in the 2016 elections.
Last general election Polls open in the United Kingdom, with Labour leader Jeremy Corbyn and incumbent Theresa May of the Conservatives battling in a tight race, according to final opinion polling, to become prime minister.
Eaton Township Weis Markets shooting A supermarket employee shoots and kills three fellow employees, then kills himself, in a closed Weis Markets store in Eaton Township in Northeastern Pennsylvania. One person escapes unharmed.
Hezbollah U.S. authorities charge two operatives, Samer El Debek, 37, of Dearborn, Michigan, and Ali Kourani, 32, of the Bronx, New York, belonging to the Lebanese Shiite militant group Hezbollah with terrorism offenses, accused of plotting to target American and Israeli targets in New York and Panama.
2017 Qatar diplomatic crisis The Saudi Arabia-led bloc against Qatar issues a "terror list" against the peninsula.
Opioid epidemic The U.S. Food and Drug Administration asks pharmaceutical manufacturer Endo International plc to withdraw its long-lasting (12 hours) opioid painkiller, Opana ER, from the market after an FDA panel concluded the drug's benefits no longer outweighed the risks of abuse. Endo is evaluating its options.
115th United States Congress The United States House of Representatives pass a bill ending Dodd–Frank regulations. The bill now goes to the Senate where it is expected to not go through.
Yahoo! Yahoo! shareholders officially approve its $4.48 billion sale to Verizon Wireless. Yahoo! stock was up 8.5 percent shortly thereafter.
United Nations Ocean Conference At a United Nations-Oceans summit, delegates from China, Indonesia, the Philippines and Thailand, four of the top polluters of plastic into the oceans, pledge to reduce their levels of oceanic plastic pollution.
Freedom of the press in the United States Montana congressman Greg Gianforte apologizes to journalist Ben Jacobs for the alleged body slam incident that occurred on May 24, and donates US$50,000 to the Committee to Protect Journalists.
American-led intervention in Syria Shortly after bombing Syrian government and allied troops near Al-Tanf, the United States shot down an Iranian-made Syrian government drone that was flying toward U.S.-led coalition forces in southern Syria. There are no injuries or damage. An American official says this is first time forces supporting Damascus have attacked coalition troops.
In its third strike near the town of Al-Tanf in recent weeks, the United States bombs Syrian government and allied troops, striking two out of three technical vehicles about 24 miles from the U.S. Coalition's At-Tanf base in Southern Syria.
Tehran attacks Iranian Intelligence Ministry releases the names and other information about the five attackers of the day before.
War in Somalia Al-Shabaab militants storm a military base in Puntland. The subsequent battle with the Somali military leaves at least 70 people dead. Somali officials called the attack the deadliest in the country in years.
2017 North Korean missile tests North Korea test fires several missiles, believed to be anti-ship weapons. The test comes immediately after South Korea suspends further deployment of the THAAD anti-missile system.