LONDON — Arnold Pease isn’t as nimble as some of the other climate protesters who have flooded the streets of Britain’s capital. At 93, he walks with the support of a stick and carries a foldable stool for when he needs to sit down. But he’s just as determined.

“It’s desperately important to take serious action against climate change,” said the great-grandfather from Manchester. Last week, he was arrested after refusing to budge from a road where fellow activists had glued themselves to a bamboo structure. read more on the washingtonpost.com