According to a new major study, you don't have to give up meat to curb climate change and save the planet. Research conducted by the Johns Hopkins University (JHU) says that 'flexitarian' diet which includes one portion of meat a day has a lower carbon footprint than a vegetarian diet that includes dairy. Scientists studied the environmental impact of all major diets across 140 countries and concludes that those who switch to a vegetarian diet may be doing more harm than good. The research concludes that it would be better to cut down on diary products, increase fruit and vegetable intake and eat meat once a day for protein and energy. They call this a 'two-thirds vegan' diet.