With science unable to accurately determine major geologic events, a reassessment needs to be made of how much nuclear site planning relies on such predictions.
No prediction can be made today for Japan, but it is safe to project a sharply increased probability for a major earthquake on the broad, simple subduction-zone segments both north and south of the Tohoku rupture zone.
A combination of safer nuclear plants and much greater use of renewable energy could position Japan as a global leader in shifting toward a sustainable pathway with renewable sources.
In the wake of Fukushima, it may be time to broaden the scope of the Seoul 2012 Nuclear Security Summit to include safety issues as well as security.
Climate negotiations are at a standstill as developed and developing countries argue over who should limit their carbon emissions first. But there is a way to break the roadblock.
Instead of pouring resources into expensive geoengineering research, we should pursue low-tech reproductive health and women's empowerment programs that have widespread social benefits and can reduce CO2 emissions.
Even taken together, today's international governance organizations aren't capable of addressing the changing climate. The necessary step toward rectifying this problem: a new financial architecture that supports both adaptation and mitigation strategies.
Despite the well-known relationship between climate change and health, WHO has been only tangentially involved in major international climate efforts--a situation that must change.
Instead of pursuing a new nuclear warhead, President-elect Barack Obama and his advisers should take a deep breath and thoughtfully reconsider the country's nuclear posture.
Campaign promises and hopes for a green energy future depend on fundamental reform at the Energy Department, long one of the government's most dysfunctional offices.