The easiest way to reduce climate change gases in the atmosphere is for all humans to become vegan. Obviously this is not going to happen, so scientists are working on ways to make cows and sheep produce less methane. Did you know that a quarter of all the methane produced by human activity comes from farm animals? There are differing approaches to this problem around the world.
In Germany for example, scientists at Hohenheim University have developed a plant-based pill that is combined with a special diet to reduce the methane cows produce by converting it to glucose. In New Zealand and the UK the approach taken is to get farmers to grow different types of grass that have high levels of sugar. This diet of sugar rich grass changes the way bacteria in the animals’ stomachs break down plant material into waste gas. The problem with this type of grass is that it is more difficult to grow, so scientists are trying to make a genetically modified version which it is hoped will be easier to grow. Which in effect is getting GM crops into the food chain through the back door.
From: BEST OF 2008: Eco-friendy and sustainable shoes