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Activists, influencers raise alarm after MMIWG content disappears from Instagram on Red Dress Day. (Solen Feyissa/Unsplash)

Beyond a technical bug: Biased algorithms and moderation are censoring activists on social media

Automated content moderation using algorithms are quick and cheaper. But, they’re not necessarily better than human beings. They are prone to errors and can impose bias in a systemic scale.
A volunteer looks for waterbirds at Point Reyes National Seashore in California during the National Audubon Society’s annual Christmas Bird Count. Kerry W/Flickr

Citizen scientists are filling research gaps created by the pandemic

COVID-19 kept many scientists from doing field research in 2020, which means that important records will have data gaps. But volunteers are helping to plug some of those holes.
Rapid loss of species like these Spix’s macaws, considered extinct in the wild, may represent the sixth mass extinction in Earth’s history. PATRICK PLEUL/DPA/AFP via Getty Images

Protecting half of the planet is the best way to fight climate change and biodiversity loss – we’ve mapped the key places to do it

A new plan targets areas around the world that can store carbon and protect large numbers of species. It calls for preserving these lands, working with Indigenous peoples and connecting wild areas.
Fresno, California and the surrounding San Joaquin Valley have some of the nation’s highest levels of fine particle air pollution. AP Photo/Gary Kazanjian

Fine-particle air pollution has decreased across the US, but poor and minority communities are still the most polluted

A new study shows that while fine particle air pollution has declined nationwide over the past 40 years, the health and environmental benefits haven’t been shared evenly.
Algae cover the surface of the Caloosahatchee River at the W.P. Franklin Lock and Dam, July 12, 2018, in Alva, Florida. AP Photo/Lynne Sladky

What is causing Florida’s algae crisis? 5 questions answered

Red tide and a blue-green algae outbreak are fouling hundreds of miles of coast, killing fish and driving tourists away from beaches. Some of the causes are natural, but human actions play a big role.
The Victorian mountain ash forest has been severely affected by fires and logging. To determine the actual health of the forest, we need to look at the quality, not just the quantity of what remains. Graeme/flickr

Why we are measuring the health of Australian vegetation poorly

In the aftermath of fires or logging, conservation needs to focus on recovering the health of the remaining vegetation, not just the size of the forest or woodland.

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