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  2. Carbon offsets and credits - Wikipedia

    en.wikipedia.org/wiki/Carbon_offsets_and_credits

    One carbon credit represents a reduction, avoidance or removal of one metric tonne of carbon dioxide or its carbon dioxide-equivalent (CO 2 e). A variety of greenhouse gas reduction projects can qualify for offsets and credits depending on the scheme. Some include forestry projects that avoid logging and plant saplings, [1][2] renewable energy ...

  3. Black carbon - Wikipedia

    en.wikipedia.org/wiki/Black_carbon

    Black carbon is in the air and circulates the globe. Black carbon travels along wind currents from Asian cities and accumulates over the Tibetan Plateau and Himalayan foothills. Chemically, black carbon (BC) is a component of fine particulate matter (PM ≤ 2.5 μm in aerodynamic diameter). Black carbon consists of pure carbon in several linked ...

  4. Carbon nanotube - Wikipedia

    en.wikipedia.org/wiki/Carbon_nanotube

    A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometre range . They are one of the allotropes of carbon. Two broad classes of carbon nanotubes are recognized: Single-walled carbon nanotubes (SWCNTs) have diameters around 0.5–2.0 nanometres, about 100,000

  5. Ray Bradbury - Wikipedia

    en.wikipedia.org/wiki/Ray_Bradbury

    Ray Douglas Bradbury (US: / ˈ b r æ d b ɛr i / BRAD-berr-ee; August 22, 1920 – June 5, 2012) was an American author and screenwriter.One of the most celebrated 20th-century American writers, he worked in a variety of genres, including fantasy, science fiction, horror, mystery, and realistic fiction.

  6. Carbon monoxide - Wikipedia

    en.wikipedia.org/wiki/Carbon_monoxide

    Carbon monoxide (chemical formula CO) is a poisonous, flammable gas that is colorless, odorless, tasteless, and slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simplest carbon oxide. In coordination complexes, the carbon monoxide ligand is called carbonyl. It is ...

  7. List of national parks of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_national_parks_of...

    The state with the most national parks is California with nine, followed by Alaska with eight, Utah with five, and Colorado with four. The largest national park is Wrangell–St. Elias in Alaska: at over 8 million acres (32,375 km 2), it is larger than each of the nine smallest states.

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