To calculate the amount of ozone depletion caused by the release of 1000 metric tons of CFCs, we need to consider the ozone depletion potential ODP of the specific CFC compound being released. For this example, let's assume the CFC being released is CFC-11 trichlorofluoromethane , which has an ODP of 1.1 metric ton of CFC-11 can destroy 1 metric ton of ozone. Therefore, 1000 metric tons of CFC-11 can destroy 1000 metric tons of ozone.Impact on the atmosphere in terms of UV radiation:Ozone in the stratosphere absorbs the majority of the sun's harmful ultraviolet UV radiation, particularly UV-B radiation. When the ozone layer is depleted, more UV-B radiation reaches the Earth's surface. This can lead to an increase in the incidence of skin cancer, cataracts, and other health issues in humans, as well as negative effects on the environment, such as reduced crop yields and damage to marine ecosystems.Impact on human health:Increased exposure to UV-B radiation due to ozone depletion can have several harmful effects on human health. These include:1. Skin cancer: UV-B radiation can cause DNA damage in skin cells, leading to an increased risk of skin cancer, particularly malignant melanoma, basal cell carcinoma, and squamous cell carcinoma.2. Eye damage: UV-B radiation can cause cataracts, a clouding of the eye's lens that can lead to vision loss if left untreated. It can also cause photokeratitis, a painful inflammation of the cornea, and pterygium, a growth on the surface of the eye.3. Immune system suppression: Exposure to UV-B radiation can suppress the immune system, making individuals more susceptible to infections and reducing the effectiveness of vaccinations.4. Premature aging of the skin: UV-B radiation can cause premature aging of the skin, leading to wrinkles, age spots, and a loss of skin elasticity.In conclusion, the release of 1000 metric tons of CFCs into the atmosphere can cause significant ozone depletion, leading to increased UV-B radiation exposure and a range of negative impacts on human health and the environment.