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  2. Visual perception - Wikipedia

    en.wikipedia.org/wiki/Visual_perception

    The human visual system is generally believed to be sensitive to visible light in the range of wavelengths between 370 and 730 nanometers of the electromagnetic spectrum. [3] However, some research suggests that humans can perceive light in wavelengths down to 340 nanometers (UV-A), especially the young. [ 4 ]

  3. Olusosun landfill - Wikipedia

    en.wikipedia.org/wiki/Olusosun_landfill

    The Olusosun nigerian dumpsite is a 100-acre [1] dump in Lagos, Lagos State, Nigeria. [2] It is the largest in Africa, and one of the largest in the world. The site receives up to 10,000 tons of rubbish each day. Waste from around 500 container ships is also delivered to the site, adding a substantial portion of electronic waste. Some of this ...

  4. Ecological light pollution - Wikipedia

    en.wikipedia.org/wiki/Ecological_light_pollution

    Ecological light pollution [1] is the effect of artificial light on individual organisms and on the structure of ecosystems as a whole.. The effect that artificial light has upon organisms is highly variable, [2] and ranges from beneficial (e.g. increased ability for predator species to observe prey) to immediately fatal (e.g. moths that are attracted to incandescent lanterns and are killed by ...

  5. Environmental issues in Africa - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in_Africa

    The increase in population also has led people to rely on cropping as a source of income, but many do not take measures to protect the soil, [11] due to low income. [12] The current methods create too much pressure on other environmental aspects, such as forests, and are not sustainable. [13] There are also ecological causes of the poor soil ...

  6. Environmental issues in the Niger Delta - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in...

    Aquaculture allows for fish to be farmed for production and provide more jobs for the local people of Nigeria. Overfishing is not the only impact on marine communities. Climate change, habitat loss, and pollution are all added pressures to these important ecosystems. The banks of the Niger River are desirable and ideal locations for people to ...

  7. Light pollution - Wikipedia

    en.wikipedia.org/wiki/Light_pollution

    Light pollution is the presence of any unwanted, inappropriate, or excessive artificial lighting. [1] [2] In a descriptive sense, the term light pollution refers to the effects of any poorly implemented lighting sources, during the day or night. Light pollution can be understood not only as a phenomenon resulting from a specific source or kind ...

  8. Polarized light pollution - Wikipedia

    en.wikipedia.org/wiki/Polarized_light_pollution

    In nature, water and water vapor polarize the sunlight (which itself is slightly polarized). By receiving the direction of polarized photons, some species can correct their course during migration . Artificial polarization of natural or artificial light can disrupt the behavior of these species and the ecosystems in which these species play an ...

  9. Globe at Night - Wikipedia

    en.wikipedia.org/wiki/GLOBE_at_Night

    Globe at Night is an international scientific research program that crowdsources measurements of light pollution in the night sky. At set time periods within each year, the project asks people to count the number of stars that they can see from their location and report it to the project's website.