What are the consequences of not following the Montreal Protocol?
With full implementation of the Montreal Protocol, the U.S. Environmental Protection Agency (EPA) estimates that Americans born between 1890 and 2100 are expected to avoid 443 million cases of skin cancer, approximately 2.3 million skin cancer deaths, and more than 63 million cases of cataracts, with even greater …
How does Montreal Protocol help reduce ozone depletion?
The Montreal Protocol sets binding progressive phase out obligations for developed and developing countries for all the major ozone depleting substances, including chlorofluorocarbons (CFCs), halons and less damaging transitional chemicals such as hydrochlorofluorocarbons (HCFCs).
What effect has the Montreal Protocol had on the stratospheric ozone layer?
Effective stratospheric chlorine. The Montreal Protocol has been successful in slowing and reversing the increase of ozone-depleting gases (halogen source gases) in the atmosphere. An important measure of its success is the change in the value of effective stratospheric chlorine.
Which of the following are consequences of ozone depletion?
Ozone layer depletion causes increased UV radiation levels at the Earth’s surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.
Which of the following is NOT a consequence of ozone layer depletion?
1. Which of the following is not the consequence of ozone layer depletion? C. Cyanobacteria are sensitive to UV radiation and would be affected by its increase.
What is the significance of Montreal Protocol and Kigali amendment to Montreal Protocol?
On October 15, 2016, with the United States’ leadership, 197 countries adopted an amendment to phase down HFCs under the Montreal Protocol in Kigali, Rwanda. Under the amendment, countries committed to cut the production and consumption of HFCs by more than 80 percent over the next 30 years.
How has the Montreal Protocol of 1987 impacted climate change?
As such, the Montreal Protocol has resulted in two major changes to global atmospheric composition that have relevance to Earth’s climate: (1) ozone depletion has reversed and a recovery in the ozone hole is now underway, and (2) several potent varieties of greenhouse gases, most notably CFC-11 and CFC-12, have been …
What are the causes and consequences of ozone layer depletion?
The main effect of ozone depletion is an increase in UV-B rays reaching the earth’s surface. Causes : chlorofluorocarbon (CFCs), halons, and other compounds deplete the ozone layer. CFCs and halons break down into chlorine and bromine which in turn destroy the ozone layer.
Which of the following is NOT consequences of ozone layer depletion?
Which of the following are consequence of ozone depletion?