WORKING PAPER | The United Nation’s 2016 Paris Agreement, negotiated by 195 countries, creates a framework for keeping global temperatures from rising more than 2 degrees celsius. The next task is determining how to pay for it in a fair way.

WORLDLY PHILOSOPHER | This week's Worldly Philosopher, Julia M. Puaschunder, describes how meritocracy enables intergenerational mobility to foster equitable societies.