Keith Kloor

Collide-a-Scape

The 37 percent Discrepancy 

An iconic example of the Ice Age megafauna of North America, the mammoth went extinct soon after humans arrived on the continent — except for isolated populations. (Credit: Stephen Wilkes, Courtesy of the Royal BC Museum and Archives, Victoria, BC, Canada)

mammoth

Experts continue to claim that that they can bring the woolly mammoth back from extinction, but the reality is far more complicated.

Will Woolly Mammoths Ever Make a Comeback?

Population

Our population has just reached 8 billion people, but we are not the first ones to worry about overpopulation.

We’ve Been Worried About Overpopulation for Millenia 

An endangered Galápagos penguin, photographed in October on Santiago Island, just 25 miles south of the Equator in the Galápagos archipelago. This endangered endemic species is able to survive so far north because of cool ocean temperatures — which are even cooler than normal right now because of the La Niña climatic phenomenon. (Credit: ©Tom Yulsman)

Galápagos Penguin

These changes could pose particular challenges for the astonishing creatures of the Galápagos Islands — epicenter of El Niño and La Niña.

Climate Change Will Make El Niño and La Niña Stronger by 2030 — 40 Years Sooner Than Previously Thought

Overfishing

Although the oceans are already changing, advocates say it’s not too late to do some serious damage control. This includes the decline of global fishing stocks.

The Real Reason Global Fish Stocks Are Declining — And What You Can Do About It

Glen Canyon Dam

The dwindling water levels of Lake Powell are revealing burial sites, pottery and a 900-year-old ancient structure that was once sacred to Indigenous populations. 

Drought At Lake Powell Reveals Preserved World That Was Once Lost

advanced civilization

Inspired by a Doctor Who episode, the Silurian hypothesis asks if there are traces of an industrial civilization before humans on Earth.

The 37 percent Discrepancy

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