Sentences with phrase «springtime ozone hole»

T. Deshler of the University of Wyoming and an American - Italian team say that a year ago, aerosol from Mount Hudson, which erupted in Chile in August 1991, worsened the springtime ozone hole above the Antarctic.

Ever since its discovery in 1985, the springtime ozone hole over Antarctica has been an insistent reminder of humankind's ability to cause environmental harm.

Not exact matches

It encompasses both a steady thinning of the ozone layer at mid-latitudes and its catastrophic springtime collapse at the poles, often called the ozone hole.

The recipe for massive springtime ozone loss in the polar regions, such as the annual ozone hole seen over Antarctica during the past two decades, is fairly simple.

The springtime stratospheric ozone hole & surface ozone also have an impact, and the combination of soot & surface ozone would exceed the impact from greenhouse gases (soot deposition alone is on par with greenhouse gases in the boreal thaw).

There have been some recent bumper springtime holes in Antarctic ozone.

Minimum values of total ozone inside the ozone hole are close to 100 Dobson units (DU) compared with normal springtime values of about 300 DU -LSB-...].

Just over a decade later in 1985, scientists working for the British Antarctic Survey discovered a recurring springtime Antarctic ozone hole.

In terms of the springtime Antarctic total column ozone losses (ozone hole), the system has not recovered, but the rapid expansion of the pre-Montreal Protocol period has been reversed to modest declines.