Monthly Archives: August 2013

U.S. Bike-Sharing Fleet More than Doubles in 2013

By Janet Larsen The opening of the San Francisco Bay Area bike share on August 29, 2013, brings the combined fleet of shared bikes in the United States above 18,000, more than a doubling since the start of the year. … Continue reading

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Rising Temperature, Rising Food Prices

By Lester R. Brown Agriculture as it exists today developed over 11,000 years of rather remarkable climate stability. It has evolved to maximize production within that climate system. Now, suddenly, the climate is changing. With each passing year, the agricultural … Continue reading

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Grain Yields Starting to Plateau

By Lester R. Brown From the beginning of agriculture until the mid-twentieth century, growth in the world grain harvest came almost entirely from expanding the cultivated area. Rises in land productivity were too slow to be visible within a single … Continue reading

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