Summertime often means soaring, dangerous temperatures. Recent heat waves in Europe brought government warnings, power plant shutdowns, restrictions on automobile use, heat stroke and deaths. But misery in Europe and elsewhere is compounded by the chemistry of how emissions from ...

Most of the rising global attention to air pollution focuses on the impacts that ozone, particulate matter and other pollutants have on human health. This is natural; the numbers in the headlines are striking. The World Health Organization (WHO) estimates that ...

Did you know that air quality is a major contributor to global warming? Or that poor air quality can reduce sunlight, disrupting rainfall patterns, depressing crop yields and diminishing solar energy output? Did you know air pollution is the biggest ...

The original version of this text appeared in the International Finance Corporation analysis, “Climate Investment Opportunities in Cities.” Air pollution is the world’s fourth-leading fatal health risk and the top environmental health risk. One in nine deaths globally are attributed ...

Several wildfires are still burning through California. The Camp Fire in Northern California has killed at least 48 people and is now the deadliest ever recorded. The fire has burned 130,000 acres near Paradise, 80 miles north of Sacramento. Near Thousand Oaks, Woolsey Fire ...

Solving the world’s air pollution problems is not going to be easy. Ninety-eight percent of cities in low- and middle-income countries with more than 100,000 inhabitants do not meet World Health Organization air quality guidelines for PM2.5. In total, 95 ...