Tag

Black Carbon

All articles tagged with #black carbon

science9 days ago•4 min saved

Satellite Boom Could Leave Uncharted Climate Footprint, Study Warns

A new study projects that the rapid deployment of satellite megaconstellations will drive a growing climate impact via black carbon from rocket launches, potentially rising to about 42% of space-sector warming by 2029 as launches and propellant use increase; while soot has a cooling effect in the upper atmosphere, its impact is small compared to greenhouse gases, prompting calls for tighter regulation, better emissions tracking, and caution around unregulated growth and potential ozone or geoengineering risks.

via Gizmodo|

#black-carbon #climate-change #geoengineering

environment23 days ago•3 min saved

Tiny Plastics in the Sky May Be Warming the Planet

A Nature Climate Change study finds colored micro- and nanoplastics suspended in the atmosphere have a net warming effect. While the global impact remains small, the warming can exceed that of black carbon in regions with high plastic concentrations, such as the North Pacific Gyre, by up to about fivefold. The researchers used high-resolution spectroscopy and atmospheric transport simulations to refine estimates of direct radiative forcing, but they emphasize the need for more world-wide measurements to accurately map airborne microplastics.

via Gizmodo|

#air-pollution #black-carbon #climate-change

environment3 months ago•6 min saved

Arctic shipping soot accelerates warming, sparks cleaner-fuel push

Rising Arctic shipping as sea ice recedes is boosting black carbon emissions that speed Arctic and global warming, prompting discussions at the International Maritime Organization on cleaner 'polar fuels' and tighter fuel rules, though progress is hampered by loopholes, industry resistance, and geopolitical tensions over Greenland.

via cbsnews.com|

#arctic #black-carbon #environment