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  2. List of countries by air pollution - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_air...

    Air pollution can affect nearly every organ and system of the body, negatively affecting nature and humans alike. Air pollution is a particularly big problem in emerging and developing countries, where global environmental standards often cannot be met. The data in this list refers only to outdoor air quality and not indoor air quality, which ...

  3. List of countries by carbon dioxide emissions - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Land use change is not included. [2] Cumulative CO 2 emissions by world region, 2022. [3] This is a list of sovereign states and territories by carbon dioxide emissions [n 1] due to certain forms of human activity, based on the EDGAR database created by European Commission and Netherlands Environmental Assessment Agency.

  4. 2022 in climate change - Wikipedia

    en.wikipedia.org/wiki/2022_in_climate_change

    September: stating that climate change is already "an important threat", with "climate change and severe weather" endangering 34% of species, BirdLife International's State of the World's Birds 2022 reported that 49% of bird species worldwide have declining populations (only 6% are increasing). [77]

  5. Climate change - Wikipedia

    en.wikipedia.org/wiki/Climate_change

    A related phenomenon driven by climate change is woody plant encroachment, affecting up to 500 million hectares globally. [218] Climate change has contributed to the expansion of drier climate zones, such as the expansion of deserts in the subtropics. [219] The size and speed of global warming is making abrupt changes in ecosystems more likely ...

  6. 2020s in environmental history - Wikipedia

    en.wikipedia.org/wiki/2020s_in_environmental_history

    This is an environmental history of the 2020s. Environmental history refers to events and trends related to the natural environment and human interactions with it. Examples of human-induced events include biodiversity loss, climate change and holocene extinction.

  7. Greenhouse gas emissions - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions

    This contributes to climate change. Carbon dioxide (CO 2), from burning fossil fuels such as coal, oil, and natural gas, is the main cause of climate change. The largest annual emissions are from China followed by the United States. The United States has higher emissions per capita.