And hundreds have been arrested since Monday, in a civil disobedience campaign demanding immediate government action on climate change.

“We’re not trying to be a nuisance and bother commuters,” said Luis Silva, a member of Extinction Rebellion, the activist group that organized the protests, “but we need to shake people for them to understand that this is a global emergency and we all have to participate to avert the impending disaster.”

Validation: The protesters’ cause was bolstered — whether intentionally or not — by Mark Carney, the governor of the Bank of England, who warned the financial sector that it faced an existential threat from climate change and urged international banks to take immediate steps to prepare.

International plan: Extinction Rebellion says it has organized demonstrations in more than 80 cities across 33 countries, to be held in the next few days.

North Korea claims test of new weapon

North Korea said today that it had test-fired a new type of “tactical guided weapon.” There was no evidence the test involved a nuclear detonation or an intercontinental ballistic missile.

Experts said it was likely that the test was a demonstration of a conventional weapons system, perhaps artillery or an antiaircraft system, and amounted to signal-sending by the North Korean leader, Kim Jong-un.