Portal:Environment/Did you know/1

• ...that recycling aluminium saves 95% of the energy cost of processing new aluminium?

Portal:Environment/Did you know/2

• ...that many countries that signed the Kyoto Protocol actually increased the greenhouse gas emissions, contrary to the treaty? And for that, the 15 January 2011, a representative of the country had to stick their head in a hole of sand in Cancun, Mexico?

Portal:Environment/Did you know/3

• ...that in United Nations Intergovernmental Panel on Climate Change fourth assessment report, average Arctic temperatures increased at almost twice the global average rate in the past 100 years?

Portal:Environment/Did you know/4

• ...that chlorofluorocarbons (CFCs) can cause ozone depletion, and the ozone hole needs to take more than a decade to recover?

Portal:Environment/Did you know/5

• ...that the word smog is a portmanteau of smoke and fog?

Portal:Environment/Did you know/6

• ...that tidal power is a form of hydropower that exploits the rise and fall in sea levels due to tides in order to generate electricity?

Portal:Environment/Did you know/7

• ...that the incandescent light bulb has an energy efficiency of only 5%, and the rest of the energy is used to generate heat rather than light?

Portal:Environment/Did you know/8

• ...that there was a Three Mile Island accident in United States where a partial meltdown of a nuclear powerplant took place in 1979?

Portal:Environment/Did you know/9

• ... that the recycling symbol is based on the Möbius strip?

Portal:Environment/Did you know/10

• ... that the first National Park was the Yellowstone National Park in the United States?

Portal:Environment/Did you know/11

• ... that the idea of atmospheric gases trapping the Suns heat to produce the greenhouse effect was put forward by Joseph Fourier in the 1820’s?

Portal:Environment/Did you know/12

• ... that Minamata disease was caused by mercury poisoning due to pollution drained into Minamata Bay in Japan?

Portal:Environment/Did you know/13

• ... that methane has 25 times the impact of carbon dioxide as a greenhouse gas?

Portal:Environment/Did you know/14

• ... that the global ecological footprint is 1.8 global hectares (gha) per capita?

Portal:Environment/Did you know/15

• ... that the concept of reduce, re-use, and recycle as three equal options, but they are instead meant to be a hierarchy, in order of importance?

Portal:Environment/Did you know/16

• ... that since 1500 CE 784 extinctions have been documented by the International Union for Conservation of Nature and Natural Resources?

Portal:Environment/Did you know/17

• ...that in 2004, the worldwide energy consumption of the human race was 15 TW (= 1.5 x 10¹³ W) with 86.5% from burning fossil fuel?

Portal:Environment/Did you know/18

• ...that the United Nations Environment Programme (or UNEP), which coordinates United Nations environmental activities, was founded in 1972?

Portal:Environment/Did you know/19

• ... that the average United States citizen consumes 119pg (10⁻¹² g) of dioxin per day?

Portal:Environment/Did you know/20

• ... that each year in 22,500 cemeteries across the United States approximately 30 million board feet (70,000 m³) of hardwoods are buried as caskets?

Portal:Environment/Did you know/21

• ... that rivers have been classified by many criteria, including their topography, their biotic status and their relevance to white water rafting and canoeing activities?

Portal:Environment/Did you know/22

• ... that climate change scenarios, Special Report on Emissions Scenarios (SRES) were superseded by Representative Concentration Pathway (RCP)?

Portal:Environment/Did you know/23

• ... that the Andrew W. Breidenbach Environmental Research Center was originally housed in a Cincinnati mansion built around 1815?

Portal:Environment/Did you know/24

• ... that Summer Rayne Oakes has been called "the world's first eco-model" because she only models clothes made from organic or recycled materials?

Portal:Environment/Did you know/25

• ... that Liberian lawyer Alfred Brownell won the "Green Nobel" prize for his efforts to protect more than 500,000 acres (2,000 km²) of tropical forest land?

Portal:Environment/Did you know/26

• ... that the entire editorial board of the International Journal of Occupational and Environmental Health resigned in protest in November 2017 over disputes involving the new editor-in-chief?