Mar 20, 2014
There are still some countries with a large potential for expanding fertilizer use. But in the many countries that have effectively removed nutrient constraints on crop yields, applying more fertilizer has little effect on yields. For the world as a whole, the era of rapidly growing fertilizer use is now history.
Mar 13, 2014
While on a brief assignment for the USDA in India in 1965, Lester Brown pieced together the early clues of an impending famine. His urgent warning to the U.S. and Indian governments set in motion the largest food rescue effort in history, saving millions of lives.
Mar 11, 2014
Today, with oceanic resources more threatened than ever, the world is far from that envisioned MPA network. Although coverage has doubled since 2010, just 2.8 percent of the ocean surface—some 10 million square kilometers (4 million square miles), roughly the size of the United States—is now in designated MPAs. And...
Mar 10, 2014
Last year was the thirty-seventh consecutive year of above-normal global temperature. According to data from NASA, the global temperature in 2013 averaged 58.3 degrees Fahrenheit (14.6 degrees Celsius), roughly a degree warmer than the twentieth-century average. Since the dawn of agriculture 11,000 years ago,...