How new Southern California air cleanup plan could affect warehouses, ports

[Source: The Press Enterprise] Southern California air quality officials approved a 15-year pollution clean-up plan Friday, March 3, after adding provisions that would eventually eliminate a pollution-credits marketplace that regulates emissions from oil refineries and other major smokestack polluters. But the 11-2 vote by the South Coast Air Quality Management District board left intact controversial Read More…

Ozone hole over Antarctica is closing, reports Science

[Source: Reason.com] In the 1980s, researchers discovered that the protective stratospheric ozone layer over Antarctica was thinning. Since stratospheric ozone reduces the amount of damaging ultraviolet light from the sun that reaches the surface, this was potentially very bad news. Scientists quickly identified chlorofluorocarbons (CFCs) widely used as coolants in refrigerators, air conditioners, and as Read More…

Antarctic ozone hole shows signs of healing

[Source: Science Recorder] Researchers from the Massachusetts Institute of Technology and the University of Leeds have discovered that the ozone layer above Antarctica has been slowly healing, a recent study published in the journal Science reports. The ozone layer is a section of the Earth’s atmosphere that shields the planet from harmful ultraviolet rays. However, greenhouse gas Read More…