New planet-changing geoengineering technology is available to help humanity combat an existential security threat. However, like atomic fission, this technology is not to be jumped at without caution…

Attempting to shut down discussion of the potential weaponization of geoengineering is unwise. We can only see a short way into the future.

The premise that solar geoengineering is weaponizable is either false or grossly overstated. It is time to leave such distractions behind and focus more squarely on the real dilemmas of this otherwis…

Each year CFR.org managing editor Bob McMahon and I take a break from the news on The World Next Week to record a special episode of our summer reading recommendations. That episode is now live. This…

Estimating and translating the probability of an event for decision-makers is among the most difficult challenges in government and the private sector. The person making the estimate must be able to …