Agricultural pollution has a created a ' Dead Zone ' in the Gulf of Mexico . Globally the number of Dead Zones has doubled every decade since the 1960 's . The drive to increase biofuel production could increase pollution in rivers and seas . Pesticide use increased 1000 percent in the Philippines between 1961 and 1970s .
Agricultural pollution has a caused a 'Dead Zone ' in the Gulf of Mexico . Globally the number of Dead Zones has doubled every decade since the 1960 's . The drive to increase biofuel production could increase pollution in rivers and seas . Pesticide use rose 1000 percent in the Philippines between 1961 and 2005 .