Climate changes like global warming is the result of human practices like emission of Greenhouse gases. Global warming leads to rising temperatures of the oceans and the earth’ surface causing melting of polar ice caps, rise in sea levels and also unnatural patterns of precipitation such as flash floods, excessive snow or desertification.
As our climate changes, the risk of injury, illness, and death from the resulting heat waves, wildfires, intense storms, and floods rises. One thing that can affect humans is extreme heat; If high temperatures, especially when combined with high relative humidity, persist for several days (heat waves), and if nighttime temperatures do not drop, extreme heat can be a killer. Second, poor air quality is another effect. Three key ingredients; sunlight, warm air, and pollution from power plants and cars burning coal and gasoline combine to produce ground-level ozone (smog), which humans experience as poor air quality. Higher air temperatures increase smog, if sunlight, fossil fuel pollution, and air currents remain the same