Hot weather can be hard for asthma sufferers. As high temperatures persist, there is a growing emphasis on helping people avoid getting sick from the heat. [News Source]

Antarctica under siege. Stunning beauty and the promise of oil and minerals are bringing more people to the once-pristine continent. [News Source]

Today a wasteland, tomorrow your home? Many tracts of contaminated industrial land, also know as brownfield sites, have been converted into residential areas in industrial cities in Liaoning and elsewhere across China. [News Source]

Anti-smog ‘bonnet’ lays track for clean air. Smog fighters on Wednesday demonstrated a new, supersized weapon to subdue one of the biggest and dirtiest offenders left standing on the battlefield: the idling locomotive. [News Source]

California fights filth of its ports. In the first effort of its kind in the nation, the ports of Long Beach and Los Angeles are about to launch a $2 billion campaign to clean up the ships, trucks, cranes and locomotives that ply and pollute the waterfronts in the country's busiest ports. [News Source]

Intense heat begets intense smog. July's scorching heat wave created a "blanket of smog" from California to Maine, with the number of unhealthy days up from last year in 38 states, according to data compiled by a watchdog group. [News Source]

World religious leaders are starting to see green. Eco-friendly attitudes have increasingly moved into the mainstream of many faiths - from Muslim clerics urging water conservation in the fast-growing Gulf states to evangelical preachers in the U.S. calling attention to global warming. [News Source]

Summer nights heating up, scientists say. America in recent years has been sweltering through three times more than its normal share of extra-hot summer nights, government weather records show. And that is a particularly dangerous trend. [News Source]

A chemical imbalance. As industrial activity pumps carbon dioxide into the environment, more is being absorbed by the oceans. As a result, seawater is becoming more acidic, and a variety of sea creatures await a dismal fate. [News Source]

Heat waves cause increased air pollution (PhysOrg)

July’s U.S. heat waves produced a “blanket of smog” from California to Maine, with public health ozone standards being exceeded more than 1,000 times.

[News Source]

China hit by rising air pollution (BBC News)

Sulphur dioxide emissions in China are causing environmental and economic harm, the government says.

[News Source]