Outer Space Treaties Didn't Anticipate the Privatization of Space Travel. Can They Be Enforced?
If human civilization begins to expand into space, will colonists feel loyalty to their country, their planet, or Elon Musk?
International Treaty
U.S. Lethargy at Copenhagen Might Be Best for Climate
The U.S. Senate's balkiness at passing a weak-kneed symbolic climate plan leaves an open door to a genuine and meaningful American bill.
Escape From Kyoto: Saving the Protocol
The right to weasel out of greenhouse-gas agreements might be just what's needed to make them work.