Greenhouse Gases

noun a compound consisting of one carbon atom and two oxygen atoms

• Carbon dioxide is a greenhouse gas that is released into the atmosphere through various human activities.
• Plants take in carbon dioxide and release oxygen during photosynthesis.
• Dude, did you know that cars emit a ton of carbon dioxide into the air?
• His anger was like a cloud of carbon dioxide, suffocating everyone around him.

noun a substance in a physical state in which it does not resist change of shape and will expand indefinitely to fill any container in which it is placed

• The gas in the atmosphere contributes to the greenhouse effect.
• I need to fill up my car with gas before we head out.
• Let's stop at the gas station and grab some snacks.
• Her words were like gas on the fire, only making the situation worse.

noun a colorless, odorless flammable gas that is the main constituent of natural gas and is used as a fuel

• Methane is a colorless, odorless gas that is the main component of natural gas.
• Did you know that methane is a greenhouse gas that contributes to global warming?
• Some people call methane 'fart gas' because it is produced by animals when they pass gas.
• His jokes were like methane, spreading quickly and leaving everyone gasping for air.

noun a solid particle produced during incomplete combustion of fossil fuels, biofuels, and biomass

adjective describing the color and composition of the carbon particle

• Black carbon is a type of particulate air pollution that is released from burning fossil fuels.
• Hey, did you know that black carbon is a major contributor to global warming?
• I heard that black carbon is like the bad boy of air pollution, causing all sorts of trouble.
• The presence of black carbon in the atmosphere is like a dark cloud hanging over our environmental efforts.