Question:
The protocol amended in 1990 to protect the Ozone layer by completely phasing out CFC is :
AKyoto Protocol
BCartagena Protocol
CStockholm Convention
DMontreal Protocol
Answer:
D. Montreal Protocol
Explanation:
- The original Montreal Protocol, signed in 1987, was the first step in international efforts to protect stratospheric ozone.
- The London Amendment (1990) changed the ozone-depleting substances emission schedule by requiring the complete phaseout of CFCs, halons, and carbon tetrachloride by 2000 in developed countries, and by 2010 in developing countries.
- Methyl chloroform was also added to the list of controlled ozone-depleting substances, with phaseout in developed countries targeted in 2005, and in 2015 for developing countries.