A recent research cruise has reported on the amount, spread, and impacts of radiation released into the ocean from the tsunami-crippled reactors in Fukushima, Japan. They studied ocean currents, and sampled water and marine organisms up to the edge of the exclusion zone around the reactors.

The Earth’s crust beneath the Mississippi Delta sinks at a much slower rate than what had been assumed. The researchers arrived at their conclusions by comparing detailed sea-level reconstructions from different portions of coastal Louisiana.