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President Joe Biden laid out ambitious emissions targets yesterday, but in order to be taken seriously on climate change, America has some reputation rebuilding to do. Researchers are starting to understand why online meetings are so exhausting—and are pinpointing the up sides of work lives lived increasingly online. And the waning influence of awards shows such as this Sunday’s Oscars.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer