Electric barrier

Water purifier that kills 98 per cent bacteria, fast

Insulin impulses

Avoid taking decisions when blood sugar levels are unstable

Biblical proportions

Sanguine approach to circulation

The physics of blood flow gives a clearer view of its physiological role

US, Australia change tack

Won’t cut CO2 emissions

25 million years of error

Scientists got the origin of flowering plants wrong

Undercover agents

What makes nematodes so good at killing crop pests

Yellowstone losing snow: Expect widespread problems for water, wildlife

Since 1950, average temperatures in the Greater Yellowstone Area have risen 1.3°C and it has lost a quarter of its annual snowfall

Most expensive disaster in 2022: Hurricane Ian caused losses and damages worth $100bn, says report

Floods in Pakistan, west and southern Africa and drought in Europe also feature in the list of 2022’s most expensive disasters

US Department of Energy announces breakthrough in nuclear fusion, sets path to clean energy source

The Department of Energy expects the private sector to enter the arena and provide the necessary support

Why do protests turn violent? It’s not just because people are desperate

Some commentators have suggested the violence on streets stems from a deep sense of despair and helplessness that things never change  

Drying planet: Drought has become a truly planetary disaster in 2022

Climate change is fuelling the intensity of drought in already vulnerable regions while tightening its grip on not-so-vulnerable areas

Look back in hope: What America’s Hopi people can teach us about living sustainably

Down To Earth talks to author Daniel Pinchbeck about what the Hopi Native Americans of Arizona can teach the modern world which is warming …

July 2022 marks the 3rd hottest on record for the US

Precipitation was below average across much of the country’s west, central plains and southern parts

Roe v Wade overturned: What abortion access and reproductive rights look like around the world

In some countries, abortion can be performed later in pregnancy based on the health of the foetus

Frittering away Nehru’s momentous legacy

India initiated production of critical drugs in 1951 with the aid of UN bodies to keep out patent blocks—a model we have forgotten

Eagle Bluff: US wildfire crosses the 49th Parallel into Canada; forces town to be evacuated

State of emergency in Osoyoos to remain in place till August 5, according to Canadian Broadcasting Corporation

How climate change affects health in the US (and elsewhere)

For health, climate change is a catchall detrimental factor, increasing hazards across the board

In the midst of war, Russia hits at patents

As US-EU sanctions deepen, Moscow passes a law to allow free use of patents owned by ‘unfriendly countries’

Web of relationships: How pumas hold together America ecosystems

The predator, exclusive to the Americas, maintains ties with nearly 500 living species, find study

CoP26 report card: Forests need implementation, not declarations alone

The fund pledged way below what is needed to achieve goals, 10 times being pumped into companies driving deforestation

Forced migration left indigenous Americans more exposed to climate change: Study

Present-day tribal lands in the US are exposed to more heat and precipitation as well as fires

Hurricane Ida turned into a monster thanks to a giant warm patch in the Gulf of Mexico — here’s what happened

Edies during the hurricane season can spell disaster for coastal communities around the Gulf

What will cheaper US cheese mean for India's dairy farmers

Depressed global prices, rising cost of production and the trade wars with China and Mexico have led to a ballooning of reserves 

Reality check: 2017 hurricanes wreaked the most havoc in 48 years

Limiting temperature rise 1.5-2°C may cut down number of tropical cyclones but not their severity