The developing world deserves reparations from wealthier nations as compensation for the harmful climate change effects that are mostly our fault. It's us who have tainted our global commons by emitting vast amounts of carbon dioxide into the atmosphere, and us whose actions have led to extreme weather and other disasters in the world's most vulnerable regions. But a strictly financial mea culpa from rich nations won't be enough. Rich countries should also invest in geoengineering projects to provide solutions for those on the front lines of climate change: those who cannot afford to pay for more adaptive and resilient...