Business Scientists say emissions need to be halved to avoid 3C warming Updated : June 19, 2019 03:06 PM IST Public concerns about climate change are growing and have led to protests around the world. Currently, five countries - including India and Costa Rica - have targets compatible with limiting temperature rise to 2C. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.