TOP 100 CAMPING SITES
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| Slide Show: Larger Sea Life Depends on Healthy Reefs The web of life that depends on the health of coral reefs extends from microscopic algae and polyps to relative giants of the sea like the green turtle. [More] rss.sciam.com |
Voyage to the Pacific Ocean's garbage patch: An albatross visits, followed by a rough night Editor's Note: Scuba instructor and underwater videographer Drew Wheeler is traveling on board the Algalita Marine Research Foundation's 50-foot (15.2-meter) Ocean Research Vessel, Alguita, on a two-month voyage to sample and study portions of a 10-million-square-mile (25.9-million-square-kilometer) oval known as the North Subtropical Gyre (aka "Pacific garbage patch"). Wheeler and the rest of the Alguita crew left Long Beach, Calif., on June 10 with a plan to cross the International Date Line and investigate regions of reported high plastic concentrations, northwest of the Hawaiian Islands. This is his second blog post for ScientificAmerican.com.June 22, 2009 [More] rss.sciam.com |
A Movie on Monday Outdoors, With Room In contrast to Bryant Park’s packed film screenings, St. Nicholas Park in Harlem offers a more intimate experience. nytimes.com |
Banning Smoking in Parks To the Editor:. nytimes.com |
Can We Feed and Save the Planet? We are eating ourselves out of house and home. Recently, in the September 24 issue of Nature , Johan Rockström and his colleagues proposed 10 “planetary boundaries” to define safe limits of human activity. ( Scientific American is part of the Nature Publishing Group.) Those limits include caps on greenhouse gas emissions, biodiversity loss, the global conversion of land cover to cropland, and other mega-impacts on the earth’s ecosystems. Yet humanity has already exceeded several of them and is on a trajectory to exceed most of the others. The rising demand for food plays a large role in those transgressions.The green revolution that made grain production soar gave humanity some breathing space, but the continuing rise in population and demand for meat production is exhausting that buffer. The father of the green revolution, Norman Borlaug, who passed away in September at the age of 95, made exactly this point in 1970 when he accepted the Nobel Peace Prize: “There can be no permanent progress in the battle against hunger until the agencies that fight for increased food production and those that fight for population control unite in a common effort.” [More] rss.sciam.com |