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  2. Climate Clock - Wikipedia

    en.wikipedia.org/wiki/Climate_Clock

    The date shown when humanity reaches 1.5°C will move closer as emissions rise, and further away as emissions decrease. An alternative view projects the time remaining to 2.0°C of warming. [1] [2] The clock is updated every year to reflect the latest global CO 2 emissions trend and rate of climate warming. [1] On September 20, 2021, the clock ...

  3. Greenhouse gas emissions - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions

    Fossil fuel CO 2 emissions on log (natural and base 10) scales. The graphic shows the logarithm of 1850–2019 fossil fuel CO 2 emissions; [86] natural log on left, actual value of Gigatons per year on right. Although emissions increased during the 170-year period by about 3% per year overall, intervals of distinctly different growth rates ...

  4. Carbon footprint - Wikipedia

    en.wikipedia.org/wiki/Carbon_footprint

    The carbon footprint explained Comparison of the carbon footprint of protein-rich foods [1]. A formal definition of carbon footprint is as follows: "A measure of the total amount of carbon dioxide (CO 2) and methane (CH 4) emissions of a defined population, system or activity, considering all relevant sources, sinks and storage within the spatial and temporal boundary of the population, system ...

  5. Emission standard - Wikipedia

    en.wikipedia.org/wiki/Emission_standard

    EU Regulation No 443/2009 set an average CO 2 emissions target for new passenger cars of 130 grams per kilometre. The target was gradually phased in between 2012 and 2015. A target of 95 grams per kilometre applies from 2021. For light commercial vehicle, an emissions target of 175 g/km applies from 2017, and 147 g/km from 2020, [67] a ...

  6. Greenhouse gas - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas

    This is an accepted version of this page This is the latest accepted revision, reviewed on 9 December 2024. There are 2 pending revisions awaiting review. Gas in an atmosphere with certain absorption characteristics This article is about the physical properties of greenhouse gases. For how human activities are adding to greenhouse gases, see Greenhouse gas emissions. Greenhouse gases trap some ...

  7. Life-cycle greenhouse gas emissions of energy sources

    en.wikipedia.org/wiki/Life-cycle_greenhouse_gas...

    An assessment of around 180 ocean technologies found that the GWP of ocean technologies varies between 15 and 105 g/kWh of CO 2 eq, with an average of 53 g/kWh CO 2 eq. [10] In a tentative preliminary study, published in 2020, the environmental impact of subsea tidal kite technologies the GWP varied between 15 and 37, with a median value of 23. ...

  8. 'Green' ferry emits more CO2 than old diesel ship

    www.aol.com/green-ferry-emits-more-co2-061844134...

    An emissions analysis by CalMac has calculated MV Glen Sannox will emit 10,391 equivalent tonnes of CO2 a year compared with 7,732 for MV Caledonian Isles. ... CO2 emissions are up to 25% lower ...

  9. Food miles - Wikipedia

    en.wikipedia.org/wiki/Food_miles

    A 2022 study suggests global food miles CO 2 emissions are 3.5–7.5 times higher than previously estimated, with transport accounting for about 19% of total food-system emissions, [9] [10] albeit shifting towards plant-based diets remains substantially more important. [11]