Economy Global carbon emissions hit record high in 2018, says International Energy Agency Updated : March 26, 2019 06:33 AM IST The United States' CO2 emissions grew by 3.1 percent in 2018, reversing a decline a year earlier, while China's emissions rose by 2.5 percent and India's by 4.5 percent. Carbon dioxide emissions are the primary cause of global average temperature rise which countries are seeking to curb to avoid the most devastating effects of climate change. Oil demand grew by 1.3 percent in 2018, while coal consumption was up 0.7 percent as higher demand in Asia outpaced declines everywhere else. 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.