Sentences with phrase «mass migrations northward»

Edward Lendner, who was director of climate issues in a previous White House administration, wrote last week: «In what would be the single most important contingency that could impact civil society in the United States and other nations around the world, there is no agreed upon plan for how to deal with a collapsing world in the distant future if climate change and global warming get out of control and mass migrations northward create chaos in both wealthy and poor countries.»

The work used upward - facing radar systems and recorded insects flying between 150 meters and 1200 meters high, documenting thousands of mass migrations northward in spring and southward in fall, suggesting the insects know when and in what direction to migrate and pick favorable winds to do so.