Trump’s Paris exit, Putin’s hacker admission, naked mole selfies

Good morning, Quartz readers!

What to watch for today and over the weekend

China and the EU hold a timely summit in Brussels. Premier Li Keqiang and top EU officials will underscore their commitment to the Paris climate agreement after the US pullout. Also on the agenda: North Korean missile tests and global steel production.

Vladimir Putin chats with Western business execs. The Russian president is expected to drop in on a roundtable with the heads of BP, Boeing, and Total at the St. Petersburg Economic Forum.

Ireland may elect a gay prime minister. Leo Varadkar would be the youngest politician to become Taoiseach, and the first of ethnic minority heritage—his father is from India. Varadkar is up against housing minister Simon Coveney for the leadership of the Fine Gael party.

While you were sleeping

Donald Trump confirmed the US exit from the Paris Climate Agreement. The president said he would follow the accord’s withdrawal process, which will take a minimum of four years to complete. Trump vowed to renegotiate the deal to obtain better terms for the United States, but legal experts and the leaders of France, Germany, and Italy called that an impossibility.

Putin said Russian hackers might have interfered in the US election. In a shift from his previous denials, Putin said “patriotically minded” civilians could have carried out the cyberattacks that helped elect Trump.

Nigel Farage is a “person of interest” in the Trump-Russia investigation. The FBI wants to talk to the former Ukip leader because he has ties to both the Trump campaign and Wikileaks founder Julian Assange.

Walmart is asking employees to deliver packages on their way home from work. The US retail giant began a pilot program that tries to take advantage of its huge footprint as it competes with Amazon. It’s not clear how the employees would be compensated.

Quartz obsession interlude

Akshat Rathi on the gravitational waves created when two black holes merge. “In a sense, such an event is like what happens when a stone is thrown in a still pool: the stone disrupts the water, creating waves of water carrying energy away from the spot where it hit; the most violent processes in the universe can disrupt space-time in the same way, radiating waves of distorted space-time.” Read more here.

Matters of debate

Climate change is a problem for every income bracket. Some billionaires are fighting global warming, but the most devastating effects will be on the poor.

The US and UK are no longer global leaders… Both countries are experiencing the slowest economic growth of any G7 member.

AI could decide the next superpowers. Venture capitalist Kai Fu believe technological change will lead to the emergence of at least two in the next 50 years.

Surprising discoveries

Uber drivers are sharing passenger antics on social media. The dash-cam videos are designed to guard against bad reviews or false accusations.

A startup is charging $8,000 for blood transfusions from young people. It’s part of a clinical trial, but there’s no evidence that it prevents disease.

An ice shelf half the size of Lebanon is on the verge of collapse. The ancient Larsen C formation is hanging by a thread, with just 13 km (8 miles) of ice attaching it to Antarctica.

A French winery may have unearthed the world’s oldest bottle of Bordeaux. It dates back to the 1700s and was packaged in a specially sealed bottle with a green heart stopper.

Canada is urging teens to swap naked mole rates instead of nude selfies. A child protection agency launched an ad campaign featuring one of world’s ugliest rodents.

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