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Wednesday, July 27, 2011

Overweight Vs Global Warming

A concept, "Ecological Foot Print" or ecological footprint is one which asserts that almost all the actions and behavior of human life will bring the ecological impact or impact on the environment. Ranging from transportation, consumption and other behaviors. Included on people who are overweight or obese.

People who are obese and overweight need more fuel to transport them and the food he eats. According to the research team at the London School of Hygiene & Tropical Medicine, this is exacerbated because the population increase. Researchers Phil Edwards and Ian Roberts wrote in the journal Lancet in May 2008.

We become more severe and this is a global responsibility. Obesity plays a big key. At least 400 million adults worldwide are obese. World Health Organization (WHO) projected that by 2015 there were 2.3 billion adults are overweight and more than 700 million will be obese.

In his model, the investigators determined 40% of global population, including obesity with a body mass index (BMI) close to 30. Many countries approaching rapidly and has exceeded this limit. BMI is a calculation of height to weight and normal ranges between 18-25, with a BMI of more than 25 considered overweight and above 30 is obese.

The researchers found that obese people require 1680 calories to sustain normal energy and 1280 calories for daily activities, this figure is 18% higher than someone with normal BMI. Because thinner people eat less and are more likely to walk than ride the vehicle, slim man of the world population requires less transportation fuel and agriculture, Edwards said. it is also important because 20% of greenhouse gas emissions come from agriculture, he added.

The next stage is to determine how much a heavier population contribute to climate change, higher fuel prices and the reduction of food, he added. Promotion of normal BMI may reduce global food demand and of course price.

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