Where there’s smoke, there’s flare: how pollution fuels RA The World Health Organisation (WHO) has declared climate change to be the greatest threat to human health in the 21st century, likely to contribute to an additional 250,000 deaths annually between 2030 and 2050 (1, 2)… https://t.co/hmXPa492Qr https://t.co/BBClCplk8Z