Combine the given two facts to write a concluding fact. Note that there should be some parts of the first and second facts that are not mentioned in this conclusion fact. Your combined fact should be the result of a chain between the two facts. Chains form when two facts connect together to produce a concluding fact. An example of a chain is: "pesticides cause pollution" (fact1) + "pollution can harm animals" (fact2) → "pesticides can harm animals" (conclusion fact). Parts of the concluding fact overlap with the first and the second fact. To construct such a  concluding fact, a useful way is to borrow the subject from one fact and the ending conclusions from another fact.

Example Input: Fact 1: Weather refers to the conditions of the atmosphere from day to day. 
Fact 2: Earth's Atmosphere Earth's atmosphere is the layer of gasses that surrounds the earth.
Example Output: weather refers to the conditions in the layer of gasses that surrounds the earth.

Example Input: Fact 1: a warm front causes cloudy and rainy weather. 
Fact 2: If warm air is advancing on cold air, the front is designated a warm front.
Example Output: Warm air advancing on cold air can lead to cloudy and rainy weather.

Example Input: Fact 1: Loss of ozone has created an ozone hole over Antarctica. 
Fact 2: Ozone depletion allows more ultraviolet radiation, which causes skin cancer.
Example Output:
People living near Antartica now face an elevated skin cancer risk due to increased ultraviolet radiation.