Black Carbon Reduction: A Rapid Action Plan W H I

The Sixth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC Impact on snow and ice AR6) estimates the effective “radiative forcing”29 of BC at the top of the atmosphere to be between BC deposition reduces the reflectivity (albedo) of -0.28 and 0.41 watts per meter squared (W/m2) – snow and ice, thereby accelerating melting. [...] The it has thereby contributed to a temperature rise of Arctic is warming four times faster than the global 0.1°C from 1750 to 2019.30 average,36 with BC deposition identified as a major driver.37 Glaciers in the Hindu Kush region of the Regional climate effects Himalayas are melting at an unprecedented rate, due to the impact of BC on summer precipitation BC impacts regional weather and rainfall. [...] A study reveals that northeast India.32 in India, the combined effects of climate change and the direct impacts of tropospheric ozone and BC led to a decrease of up to 36% in wheat yields by 2010 compared to expected levels.39 One analysis shows that air pollution and heat stress have significantly reduced maize and soybean yields in the US from 1980 to 2019, with soybean yields being more sensiti. [...] As climate change is expected to increase the frequency and spread of wildfires, The 10 highest-emitting countries contribute avoiding and mitigating wildfires will play a key role to 69% of wildfire-related BC, and half are in in managing BC emissions. [...] Black carbon and the Arctic The Arctic is warming three times faster than the shipping, which accounts for 5% of Arctic BC global average, leading to rapid changes in sea emissions now but is expected to double by 2030 ice, land ice and snow cover.86 Approximately 20% and quadruple by 2050.89 of Arctic and global snow/ice loss was due to the black carbon-albedo effect.87 Arctic-bordering Many loca.