A brightening world: Study shows rise in global light pollution

There is more artificial light at night across the globe and that light at night is getting brighter. The rate of growth is approximately two percent each year.

Sugar industry in US withheld evidence of sucrose's health effects

A US sugar industry trade group appears to have pulled the plug on a study that was producing evidence linking sucrose to disease nearly 50 years ago.

Air pollution linked to poorer quality sperm

The international team of researchers looked at the sperm impact of short and long term exposure to fine particulate matter (PM2.5) among nearly 6500 15 to 49 year old men in Taiwan.

Rising inequality charted across millennia

Researchers have found that the arc of prehistory bends towards economic inequality. Findings have profound implications for contemporary society.

Scientists in 184 countries warn about negative global environmental trends

The viewpoint article -- "World Scientists' Warning to Humanity: A Second Notice" - was signed by more than 15,000 scientists in 184 countries.

Primary care consultations last less than 5 minutes for half the world's population

Average consultation length varies widely, from 48 seconds in Bangladesh, to 22.5 minutes in Sweden. In 15 countries, which represent around half of the world's population, the appointment lasted less than 5 minutes.

Air Pollution Has Turned New Delhi Into a ‘Veritable Gas Chamber’

Schools are closed, construction has halted, and vehicles have been restricted as levels of PM2.5 pollution spike in the Indian capital.

US government climate report: Climate change is real and our fault

As the report makes clear, there is no reasonable doubt remaining that climate change is a story about human actions—not natural cycles.

Youth uniquely vulnerable to sleep disruption from screens

Developing brains, sleep patterns, and even eyes make children uniquely vulnerable to the body-clock disrupting impact of electronics.

Are cities affecting evolution?

Explosion of rats, clovers, bedbugs, mosquitoes unintended evolutionary consequence of urbanization.

The Future of Truth and Misinformation Online

Experts are split on whether the coming years will see less misinformation online. Those who foresee improvement hope for technological and societal solutions.

New Zealand considering special visas for climate refugees

New Zealand is thinking about "an experimental humanitarian visa category" for people uprooted from their homes because of climate change.

Greenhouse gas concentrations surge to new record

Over the last 800,000 years, pre-industrial atmospheric CO2 content remained below 280 ppm, but it has now risen to the 2016 global average of 403.3 ppm.

These Endangered Wildlife Photos Are Artistic Masterpieces 

Human’s impact on nature is unmistakable, from vast swaths of lost forest to heaps of trash on beaches. Before these species go extinct one photographer is trying to document these species facing the struggle before it’s too late.

Deforestation linked to palm oil production is making Indonesia warmer

In the past decades, large areas of forest in Sumatra, Indonesia, have been replaced by cash crops like oil palm and rubber plantations. New research shows that these changes in land use increase temperatures in the region.