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  2. 2011 United Nations Climate Change Conference - Wikipedia

    en.wikipedia.org/wiki/2011_United_Nations...

    After two weeks of negotiations a deal was reached only on the last day, Sunday 11 December, after a 60-hour marathon negotiation session. Negotiators agreed to be part of a legally binding treaty to address global warming. The terms of the future treaty were to be defined by 2015 and become effective in 2020. [16]

  3. Earth Hour - Wikipedia

    en.wikipedia.org/wiki/Earth_Hour

    Earth Hour is a worldwide movement organized by the World Wildlife Fund (WWF). The event is held annually, encouraging the individuals, communities, and businesses to give an hour for Earth, and additionally marked by landmarks and businesses switching off non-essential electric lights, for one hour from 8:30 to 9:30 p.m., usually on the last Saturday of March, as a symbol of commitment to the ...

  4. Climate change - Wikipedia

    en.wikipedia.org/wiki/Climate_change

    Climate change can also be used more broadly to include changes to the climate that have happened throughout Earth's history. [32] Global warming—used as early as 1975 [33] —became the more popular term after NASA climate scientist James Hansen used it in his 1988 testimony in the U.S. Senate. [34] Since the 2000s, climate change has ...

  5. New study finds Earth warming at record rate, but no ... - AOL

    www.aol.com/news/study-finds-earth-warming...

    The rate Earth is warming hit an all-time high in 2023 with 92% of last year's surprising record-shattering heat caused by humans, top scientists calculated. The group of 57 scientists from around ...

  6. In a troubling milestone, Earth surpasses 1.5 degrees C of ...

    www.aol.com/news/troubling-milestone-earth...

    Earth has experienced 12 consecutive months of warming at or above 1.5 degrees Celsius — a threshold for avoiding the worst effects of climate change.

  7. Global warming has slightly slowed Earth's rotation — and it ...

    www.aol.com/melting-polar-ice-slowing-earth...

    Global warming has slightly slowed the Earth’s rotation — and it could affect how we measure time. A study published Wednesday found that the melting of polar ice — an accelerating trend ...

  8. List of periods and events in climate history - Wikipedia

    en.wikipedia.org/wiki/List_of_periods_and_events...

    Older Peron warm and wet, global sea levels were 2.5 to 4 meters (8 to 13 feet) higher than the twentieth-century average 3900: 5.9 kiloyear event dry and cold. 3500: End of the African humid period, Neolithic Subpluvial in North Africa, expands Sahara Desert 3000 – 0: Neopluvial in North America 3,200–2,900: Piora Oscillation, cold

  9. Illustrative model of greenhouse effect on climate change

    en.wikipedia.org/wiki/Illustrative_model_of...

    As the difference in albedo between ice and e.g. ocean is around 2/3, this means that due to a 1 °C rise, the albedo will drop by 2%*2/3 = 4/3%. However this will mainly happen in northern and southern latitudes, around 60 degrees off the equator, and so the effective area is actually 2% * cos(60 o) = 1%, and the global albedo drop would be 2/3%.