Diet has become part of the debate about climate change, with some people choosing to eat less meat for environmental reasons. While some believe this is one of the most effective personal choices, others think it makes almost no difference. In my opinion, reducing meat consumption is worthwhile, although it is not a complete solution.
Those who support eating less meat argue that livestock farming has a heavy environmental footprint. Raising cattle requires huge areas of land, and in some parts of the world forests are cleared to create grazing land or to grow animal feed. Animals also need large quantities of water, and cattle release methane, a powerful greenhouse gas. Because people eat several times a day, every day, small changes add up. A family that replaces meat with beans, lentils or vegetables on a few days each week can reduce its impact without making major sacrifices.
On the other hand, sceptics claim that individual diets are insignificant compared with the pollution caused by power stations, factories and transport. In their view, asking people to change their meals distracts attention from the decisions that really matter, which are made by governments and large companies. They also point out that meat is an important part of many cultures and that some people, for example those on low incomes or with certain health conditions, may find it difficult to change their diet.
Overall, I believe that eating less meat is a meaningful step that most people can take easily. It does not replace the need for cleaner energy and stricter rules for industry, but the two are not alternatives. When many individuals change their habits, they also create demand for more sustainable products, which encourages businesses and governments to act.