A massive forest fire has been raging in Alberta, Canada, for nearly a month. Scientists say warmer, drier weather has increased the frequency and intensity of fires. For this month's Environmental Outlook: wildfires, climate change and threats to North America’s forests.
In 1915, the British ocean liner RMS Lusitania was sunk by a German submarine, an attack that claimed 1,200 lives. In her new book, historian Diana Preston delves into the human and political costs of the assault, including America’s entry into World War I.
- Diana Preston is the author of numerous books including "Lusitania: An Epic Tragedy" and "The Boxer Rebellion"
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