“But because we’ve burned a lot of fossil fuels and deforested parts of the planet, we’ve increased the amount of greenhouse gases, and as a result have changed the temperature of the planet.”carbon dioxide A gas produced by all animals when the oxygen they inhale reacts with the carbon-rich foods that they’ve eaten.This colorless, odorless gas also is released when organic matter (including fossil fuels like oil or gas) is burned.
The display case holds rocks collected by the Apollo 15 and 16 missions.
The 1.5-kilogram (3.3-pound) chunk of volcanic basalt in the center is 3.4 billion years old.
By examining air bubbles in ice cores taken from Antarctica, scientists can go back and calculate what the concentrations of carbon dioxide in the atmosphere have been throughout the last 650,000 years.
The amount of carbon dioxide in the atmosphere has been climbing to where today it is 30 percent greater than 650,000 years ago.
We burn these fuels, made from the ancient remains of plants and animals, to run electricity-generating plants that power factories, homes and schools.
Products of these fossil fuels, such as gasoline and diesel fuel, power most of the engines that drive cars, airplanes and ships.
From a climate perspective, methane is 20 times more potent than carbon dioxide is in trapping heat in Earth’s atmosphere, making it a very important greenhouse gas.photosynthesis (verb: photosynthesize)The process by which green plants and some other organisms use sunlight to produce foods from carbon dioxide and water.radiate (in physics) To emit energy in the form of waves.
Across 98 percent of the planet, the end of the 20th century saw the hottest temperatures in the last two millennia.
The world is getting hotter, and humans are responsible. When people say global warming, they’re typically referring to the rise in average temperature of the Earth’s climate system since the late 19th century.
Temperatures over land and ocean have gone up 0.8° Celsius (1.4° Fahrenheit), on average, in that span: NASA)' data-upload-width="658" src="https://cdn.vox-cdn.com/thumbor/RKUz W2Et Vw0nt Rn Yx Bhc PT03z CQ=/0x8x474/1200x0/filters:focal(0x8x474):no_upscale()/cdn.vox-cdn.com/uploads/chorus_asset/file/3686804/Fig.