Ranges of BC Heating Effect (Global Mean) (IMAGE) Nagoya University Caption Horizontal bars in the 'Detailed method' and 'Simple method' show the ranges of BC heating effect when emission particle sizes are changed within their current uncertainty. The 'Detailed method' has 7 times greater range of BC heating effect than the 'Simple method' (0.24 W m-2 in 'Detailed method', 0.035 W m-2 in 'Simple method'). Circles in the horizontal bars show BC heating effects when average particle sizes are used for emissions. Credit Hitoshi Matsui Usage Restrictions Permission required by author. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.