When CFCs drift up into the stratosphere, they can break down ozone under certain seasonal conditions. The following year, those relevations led to the drafting of the Montreal Protocol -- an ...

In 1990, Margaret Thatcher urged further support for the Montreal Protocol so that CFCs could be phased out completely and developing nations could afford ozone friendly technologies.

When CFCs drift up into the stratosphere, they can break down ozone under certain seasonal conditions. The revelations soon ...

The 'ozone hole,' a phenomenon ... a chain reaction that breaks down ozone. The Montreal Protocol, adopted in 1987, regulated the manufacture, consumption, and trade of CFCs and other chemicals ...

Although not harmful in the lower atmosphere, once CFCs reach the stratosphere and begin to break down, they wreak havoc on the ozone layer by releasing chlorine. Due to colder temperatures and ...

These ozone-depleting gases include chlorofluorocarbons (CFCs), which we've been cracking down on since the global agreement known as the Montreal Protocol was finalized 33 years ago. CFCs ...

A wide variety of man-made chemicals, primarily CFCs, can break down ozone molecules, and have led to the commonly-known hole in the ozone layer which is still present to this day. Due to the ...

chemicals called chlorofluorocarbons (CFCs) — once widely used in aerosols and refrigerators — were found to be reducing ozone levels, creating annual holes largely over the Antarctica region.