Many North American migratory birds are shrinking in size as temperatures have warmed over the past 40 years. But birds with big brains relative to their body size did not shrink as much as smaller-brained birds, according to research from Washington University in St. Louis.
In a new study, researchers at Dalhousie University have found that sea-level rise is causing permafrost along Arctic coastlines "to thaw and retreat," threatening northern ecosystems.
The legislation would invest in traditional research and development, clashing with a broad Senate measure that focuses on cutting-edge technology to compete with China.
