Changing what we eat can help reduce carbon emissions and promote sustainable farming practices — but which diet could make the biggest difference? Earth scientist Mark Maslin PhD breaks down the different options and tells you what they mean for climate change, your health and the planet.

Plant-based milks have a lighter impact than dairy milk in terms of carbon pollution, water and land use — but not all are created equal. Two sustainability researchers crunch the numbers to guide you towards more Earth-friendly options.