Air Pollution 101 National Geographic

Summary

Far above Earth's surface, the ozone layer helps to protect life from harmful ultraviolet radiation. Learn what CFCs are, how they ... Ever since the light bulb's invention 150 years ago, artificial light has illuminated homes, streets, and skies -- but with some ... What causes climate change (also known as global warming)? And what are the effects of climate change? Learn the human ... Once a completely natural product, much of today's plastic is man-made and largely dependent upon fossil fuels. From polymers ... Glaciers appear on almost every continent. However, they are rapidly melting due to the warming climate. Find out how glaciers ... Hey kids, in this video, Dr Binocs will explain, what is Forests cover about 30% of the planet, but deforestation is clearing these essential habitats on a massive scale. What is ... In this video, we take a look at outdoor and indoor Gran parte del plástico actual, en su día un producto completamente natural, es artificial y depende en gran medida de ... Everyone should know by now that These plastic bottles illustrate how humans discard a shocking amount of plastic waste into the environment. ➡ : ... What is acid rain? What are its causes and effects? Learn about the role of fossil fuels and