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This endangered mandrill (Mandrillus sphinx) was photographed by National Geographic Photographer Joel Sartore on Bioko Island, Equatorial Guinea, in his ambitious project to document every species in captivity—inspiring people not just to care, but also to help protect these animals for future generations. Before drills disappear, like …
Pollution - Education | National Geographic Society
2024年11月7日 · The three major types of pollution are air pollution, water pollution, and land pollution. Air Pollution Sometimes, air pollution is visible. A person can see dark smoke pour from the exhaust pipes of large trucks or factories, for example. More …
Air Pollution - National Geographic Society
2024年11月15日 · Global warming—a phenomenon caused by anthropogenic air pollution—refers to rising air and ocean temperatures around the world due to an increase in greenhouse gas emissions from human activities. Greenhouse gasses trap heat energy in the Earth’s atmosphere.
Smog - Education | National Geographic Society
2024年10月1日 · Smog is air pollution that reduces visibility. The term "smog" was first used in the early 1900s to describe a mix of smoke and fog. The smoke usually came from burning coal. Smog was common in industrial areas, and remains a familiar sight in some cities today. Today, most of the smog we see is photochemical smog.
Light Pollution - National Geographic Society
2024年4月1日 · People all over the world are living under the nighttime glow of artificial light, and it is causing big problems for humans, wildlife, and the environment. There is a global movement to reduce light pollution, and everyone can help.
Point Source and Nonpoint Sources of Pollution - Education
2024年10月1日 · Factories and power plants can be a source of point-source pollution, affecting both air and water. Smokestacks may spew carbon monoxide, heavy metal, sulfur dioxide, nitrogen dioxide, or “particulate matter” (small particles) into the air.
Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land.
Noise Pollution - National Geographic Society
2024年3月6日 · Noise pollution can cause health problems for people and wildlife, both on land and in the sea. From traffic noise to rock concerts, loud or inescapable sounds can cause hearing loss, stress, and high blood pressure.
Marine Pollution - Education
2024年9月18日 · Marine pollution is a combination of chemicals and trash, most of which comes from land sources and is washed or blown into the ocean. This pollution results in damage to the environment, to the health of all organisms, and to economic structures worldwide.
Dec 5, 1952 CE: Great Smog of 1952 - Education | National …
Smog is a type of air pollution, created by industrial output and natural weather patterns. London’s reliance on coal-fired power plants for electricity and heat, and diesel-powered buses for public transportation, contributed to the Great Smog. London’s …