The polar icecaps are melting. Is it OK to have a child? Australia is on fire. Is it OK to have a child? My house is flooded, my crops have failed, my community is fleeing. Is it OK to have a child? It is, in a sense, an impossible question.

Men have become increasingly infertile, so much so that within a generation they may lose the ability to reproduce entirely.

How moonlight drives life in the ocean.