Daily Archives: March 21, 2008

Population and Migration

Population The world faces many complex population and migration dynamics over the next 50 years. The world population is estimated to grow by 1.2% annually, reaching over nine billion by 2050, according to the United Nations. The planet will soon … Continue reading

Posted in Discussions, Human Geography, opinions, Population | 3 Comments

New Book on Global Warming

If you don’t think climate change produces winners as well as losers, consider this: In the 12th and 13th centuries England exported wine to France. Vineyards also flourished in improbable regions like southern Norway and eastern Prussia. A centuries-long spell … Continue reading

Posted in books, Global Warming | 1 Comment

White Dwarfs

Where do White Dwarfs Come From? Where a star ends up at the end of its life depends on the mass it was born with. Stars that have a lot of mass may end their lives as black holes or … Continue reading

Posted in Solar System | 1 Comment