"There are many many reasons to be concerned…but a risk to the world's oxygen supply is not one of them," Allison Mills from Michigan Technological University told Newsweek.
Russia has backed Venezuelan President Nicolás Maduro against U.S. attempts to oust the socialist leader.
The find provides new insights into the origin of pottery technology in the region, a team of archaeologists said.
The ring sent teams on two cruise ships traveling from South America to Australia, each carrying large amounts of cocaine.
The bag—which has been dated to around 1,000 years ago—contains traces of several psychoactive substances.
"You have seen the Maduros around the world who just cling to their power, no matter how they treated their own people. And it's just time for him to go," said Kellyanne Conway.
"The finding of these sites extends by several millennia the history of human occupation of southwestern Amazonia," José Capriles said.
"It was used during political events to reaffirm a shared identity, to get people to let loose, and to create a memorable interaction that would bind leaders together through time," the study co-author told Newsweek.
The group of 12 politicians asked Donald Trump to use Washington's influence within the Organization of American States to prevent Bolivian President Evo Morales from running for another term.
Russian troops will remain in the country "as long as they need it, and as long as the Venezuelan government needs them," Foreign Ministry spokesperson Maria Zakharova told reporters.
The collision was captured on camera by alarmed onlookers.
"Donald Trump has without doubt given an order to kill me and has told the government of Colombia and the Colombian mafia to kill me," the embattled South American leader said.
The Trump administration has officially recognized the Venezuelan National Assembly as the legitimate democratic government of the South American country.
The treasure was aboard a Spanish ship which sunk in 1715 during a hurricane.
"We are looking at cooperation where we can and pushing back aggressively where we must," General David Goldfein said.
"The Argentine Government is making a great effort to assist Aerolíneas Argentinas at this moment, whose numbers are in the red, as always in recent years," Minister of Transport Guillermo Dietrich said.
Jair Bolsonaro, dubbed the "Donald Trump of the Tropics," clinched the presidency with 55.1 percent of the vote, despite concerns about his misogynistic and anti-gay rhetoric. What's at stake for Latin America's largest country?
Pence issued a strong warning to Venezuela on Tuesday after it stationed troops along the border of Colombia in a move seen as highly provocative by Bogotá and Washington.
Many Venezuelans have complained that it has become increasingly difficult to obtain passports and official documents, such as marriage and birth certificates, as their country sinks further into an economic crisis.
Following the attack, the Venezuelan leader accused right-wing groups and pointed fingers at Colombia. He also suggested that Venezuelans living in the U.S. were involved.
"I'll have to buy from an illegal dealer. I have no choice. This system is crap. It's useless!"
Four survivors swam to shore and told authorities in Suriname the story of the attack, which the president of Guyana has called a "massacre."