Why the Colorado river is drying up – and what we can do about it
22 November 2022
The Colorado river is the lifeblood of the US Southwest, but today it is drastically depleted due to overuse, megadrought and climate change. Here’s how to rescue it
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Premium
Flush review: Stop letting human faeces go down the toilet
14 September 2022
Bryn Nelson's extraordinary book asks why we let a vital natural resource, human faeces, get flushed away when we could be using it to heal guts, improve soil and understand our past
Earth's musical heritage finds an icy home next to global seed vault
22 June 2022
From work by Indigenous musicians to songs from a sci-art pioneer, the Global Music Vault is open for business as a cultural equivalent to the Svalbard Global Seed Bank
Why cat-like creatures vanished from North America for 6 million years
12 January 2022
Around 23 million years ago, North America's sabre-toothed cat-like animals disappeared, leaving the continent without felines for several million years. Now palaeontologists are solving the mystery of this "Cat Gap"
The essential guide to the algorithms that run your life
16 June 2021
From shaping what we read and buy to diagnosing illness, algorithms play a key role in every aspect of our lives. Here’s what you need to know about the most important ones
How the US response to covid-19 broke its world-class health agencies
28 October 2020
A series of bad decisions and ill-judged policies, coupled with unrivalled political interference, has led to the FDA and CDC losing the trust of the public and scientists
US election 2020: Trump's impact on the environment, health and space
21 October 2020
Whatever the outcome of the US presidential election, Donald Trump is likely to have a lasting impact on the nation's health, environmental regulations and space exploration
Anousheh Ansari interview: Why everyone should see Earth from space
9 September 2020
The X Prize Foundation CEO on her unique experience as the first self-funded woman to fly to the International Space Station, and how innovation could help us cope with the covid-19 pandemic
Common dolphins may finally be returning to the Adriatic sea
25 August 2020
The common dolphin (Delphinus delphis) was regionally extinct in the Adriatic Sea for 40 years, but there now appear to be four individuals living in the region
Lisa Piccirillo: How I cracked a 50-year-old maths problem in a week
5 August 2020
Solving the Conway knot problem took mathematician Lisa Piccirillo on a journey into the fourth dimension. Here's how she did it
