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Monthly Archives: January 2014
Arctic Sea Ice Freefall is Mirror Image of Carbon Dioxide Ascent
By Emily E. Adams The amount of Arctic sea ice has plummeted in recent decades—a bold manifestation of the rise in temperature resulting from the rapid increase in carbon dioxide (CO2) in the atmosphere. After staying below 300 parts per … Continue reading
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Tagged Arctic, carbon dioxide, emissions, global temperature, sea ice
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Peak Water and Food Scarcity
By Lester R. Brown At the international level, water conflicts among countries dominate the headlines. But within countries it is the competition for water between cities and farms that preoccupies political leaders. Neither economics nor politics favors farmers. They almost … Continue reading
Many Countries Reaching Diminishing Returns in Fertilizer Use
By Lester R. Brown When German chemist Justus von Liebig demonstrated in 1847 that the major nutrients that plants removed from the soil could be applied in mineral form, he set the stage for the development of the fertilizer industry … Continue reading