Pesticides in Cultivated Fish

Scientists are doing research to test if fish grown on farms are accumulating pesticides in their bodies due to the food pellets they are given. Up until now the means to do this research has been impossible. Students in Fraunhofer Institute for Molecular Biology and Applied Ecology IME in Schmallenberg have created a method for testing it by using radioactive materials to trace the pesticides which will show if they are making their way into the fishes fat cells. The test results will be published in late fall of 2011.

How a Population Reaches 7 Billion

http://www.npr.org/2011/10/31/141816460/visualizing-how-a-population-grows-to-7-billion

We have reached 7 billion people, which the majority come from Asia. Now it has switched though and the most rapid population increase is in Africa. Although there is a rapid birthrate in Africa, many people are dying there too which keeps it in check mostly. This also covers that the human population has grown by about 7 times in the past 200 years, from 1 billion to 7 billion which is astounding. The U.N believes that the population will level out at about 10 billion, it is just a matter of if we can sustain that amount.