Given below are two statements:
Statement I: Ozone hole over the Antarctica was discovered in 1987
Statement II: The Montreal Protocol envisaged 50% reduction in the use of CFCs, in the developed countries by 1998 with reference to 1986 consumption levels.
In the light of the above statements, choose the correct answer from the options given below

Correct option is D

Statement I: "Ozone hole over Antarctica was discovered in 1987."
· The discovery of the ozone hole was made in 1985 by the British Antarctic Survey, not in 1987. Therefore, Statement I is false.
Statement II: "The Montreal Protocol envisaged 50% reduction in the use of CFCs in the developed countries by 1998 with reference to 1986 consumption levels."
· This is true. The Montreal Protocol, signed in 1987, aimed for a 50% reduction in CFC use by 1998 for developed nations compared to their 1986 baseline consumption levels.
Information booster:
1. Ozone Hole Discovery:
· The ozone hole over Antarctica was first detected in 1985 by Joe Farman, Brian Gardiner, and Jonathan Shanklin of the British Antarctic Survey. This discovery highlighted the severe depletion of the ozone layer over the Antarctic region during spring.
2. Montreal Protocol:
· Adopted in 1987, the Montreal Protocol sought to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances (ODS), including chlorofluorocarbons (CFCs).
· One of its key targets was for developed countries to achieve a 50% reduction in CFC use by 1998 compared to 1986 levels. Over time, the Protocol has been revised and expanded to include additional substances and stricter targets.