Environment

Hot weather linked to higher stroke risk in older people

In a study from Tsuyama Central Hospital and Okayama University, scientists found emergency visits for stroke increased after a heatwave.

Our planet has generated lots of new lakes in recent years. That brings problems

The number of lakes on our planet has increased substantially in recent decades, according to a unique global survey of 3.4 million lakes.

Decades of air pollution could weaken the immune system

The diminished power of the immune system in older adults is usually blamed on the aging process. But air pollution also contributes.

Air pollution harms the brain and mental health, too

People who breathe polluted air experience changes within the brain regions that control emotions.

Lung infections caused by soil fungi are common in US

Scientists found fungi in the soil cause a significant number of serious lung infections in 48 out of 50 states and the District of Columbia.

Earth can regulate its own temperature over millennia, MIT study finds

Our planet harbors a “stabilizing feedback” mechanism that acts over hundreds of thousands of years to pull the climate back from the brink.

Outdoor artificial light at night linked to higher diabetes risk

Exposure to artificial light at night is a ubiquitous environmental risk factor in modern societies. In a study from Shanghai Jiaotong University, scientists found that...

Even low levels of air pollution may cause premature death

Scientists found that the annual global death toll from outdoor PM2.5 may be much higher than previously thought.

PM2.5 in air pollution linked to sudden cardiac arrest

PM2.5 category of particulate matter is known to strongly increase the risk of cardiovascular, respiratory, and even ocular diseases.

This window coating could cool buildings without using energy

As climate change intensifies summer heat, demand is growing for technologies to cool buildings. Now, researchers report in ACS Energy Letters that they have used...