Chinese scientists are researching whether releasing a thick layer of cold gas formed by liquid nitrogen into Beijing’s smoggy skies could help ameliorate the city’s pollution problems, according to a report in the South China Morning Post. This should probably be added to the “TOP 10 Global Warming Solutions“.
“It is possible in theory to create a smog-free zone with liquid nitrogen and a shield against air pollutants with man-made cold, but even in laboratories we handle liquid nitrogen with care due to its extremely low temperature,”
