When it comes to carbon dioxide, last year was a record year. The world emitted more of the climate-warming gas in 2022 than in any year since scientists began recording levels in 1900. The culprit,…

The dangers of climate change are “no longer over the horizon.” Humanity may soon pass the “point of no return.” These are the phrases U.N. Secretary-General Antonio Guterres used to describe what he called an…

Geoengineering is an ambitious set of experiments proposed by scientists to help mitigate the effects of climate change. And one type in particular, called solar geoengineering, has been the subject of debate. This process involves,…

In 2014, a permit to hunt a single endangered black rhino was sold for $350,000… as part of a program to support its conservation in Namibia. Counterintuitive? Through funds raised from legal hunting—the purchase of…

Genetically modified (GM) foods have been around for decades. Created by modifying the DNA of one organism through the introduction of genes from another, they are developed for a number of different reasons—to fight disease,…

According to a 2009 poll, around 1% of American adults reported eating no animal products. In 2011 that number rose to 2.5%--more than double, but still dwarfed by the 48% who reported eating meat, fish…