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Articles on Environment

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Sampling wildfire smoke sometimes means sticking a tube out the window of an airplane. Brett Palm/University of Washington

Wildfire smoke changes dramatically as it ages, and that matters for downwind air quality – here’s what we learned flying through smoke plumes

Thousands of chemical compounds in wildfire smoke are interacting with each other and sunlight as the smoke travels. For people downwind, it can become more toxic over time.
Rising sea levels are threatening homes on Diamniadio Island, Saloum Delta in Senegal. A child stands outside a home’s former kitchen, surrounded by mangrove branches, in 2015. (AP Photo/Jane Hahn)

Why all human rights depend on a healthy environment

Among the human rights under threat are the rights to life, health, food, a healthy environment, water, an adequate standard of living and culture.
Fruit production of shea is limited by lack of pollination and this limitation is greater at sites with less tree and shrub diversity. Author provided

Plant diversity makes West Africa’s shea trees bear more fruit

Fruit production of shea is often limited by a lack of pollination which is more pronounced in places with less tree and shrub diversity.
Erosion damage caused by Hurricane Hanna is seen along the Fisher border wall, a privately funded border fence, along the Rio Grande River near Mission, Texas, on July 30, 2020. (AP Photo/Eric Gay)

From COVID-19 to the climate emergency: Lessons from this global crisis for the next one

As a zoonotic virus, COVID-19 is itself a symptom of human-influenced climate change. It is also indicative of the humanitarian impact of future environmental crises.
Then-president of Mexico Enrique Pena Nieto, U.S. President Donald Trump and Prime Minister Justin Trudeau sign the new Canada-U.S.-Mexico Agreement in Buenos Aires, Argentina. The agreement was ratified in April 2020 and came into force last July. The Canadian Press

Free trade 2.0: How USMCA does a better job than NAFTA of protecting the environment

The Canada-U.S.-Mexico Free Trade Agreement, which came into force in July 2020, puts more emphasis on the environment and gives greater authority in Canada in the matter.
Hurricane Harvey set up a rare natural experiment to study the effects of fishing. NOAA via Wikipedia

When hurricanes temporarily halt fishing, marine food webs recover quickly

Hurricane Harvey destroyed the fishing infrastructure of Aransas Bay and reduced fishing by 80% over the following year. This removed humans from the trophic cascade and whole food webs changed.

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