A study by the University of Oxford says food production is responsible for a quarter of the world's greenhouse gas emissions, making it one of the main causes of global warming. But the researchers found that different types of food have very different environmental impacts.

Many environmentally conscious people have now given up plastic bags and plastic straws, and are trying to reuse their belongings as much as possible to help bring temperatures down by a few degrees.

But have you thought about how much your weekly shop could do to change the world?

BBC Radio 5 aired a detailed documentary on the subject in its Cool Planet season, exploring how small changes to our everyday shopping could have a big impact on the planet.

Mai Berners-Lee, a professor at Lancaster University and an expert on both climate change and sustainable food security systems, went shopping, and several examples of foods came up along the way.

Most people eat fish and meat at home, especially on holidays. Think about how much grilled chicken, sausages, noodles and the like are eaten on average at dinners on those special days of the week.

Professor Berners-Lee said beef is the most carbon-intensive meat in the world.

Source: BBC Bangla. First published in Bengali on The Agro News.