"YORK RIVER, Virginia -- Dying wetland trees along Virginia's coastline are evidence that rising sea levels threaten nature and humans, scientists say - and show the limits of political action amid climate change scepticism."

"As the climate gets warmer, so do the rivers and lakes that power plants draw their cooling water from. And that is going to make it harder to generate electricity in decades to come, researchers report."

"In an article in the journal Nature Climate Change, scientists measured temperatures now and projected what they would be at midcentury. The temperatures vary according to the time of year, and, even if the extremes remain similar, they will be more frequent -- meaning that the water will be too warm to allow full power production, they predict.

"Chagas disease, a tropical illness that is transmitted by biting insects, may pose a major unseen threat to poor populations in the Americas and Europe, according to a report published May 29 in the journal PLoS."

"LONDON -- Plants and shrubs have colonised parts of the Arctic tundra in recent decades growing into small trees, a scientific study found, adding the change may lead to an increase in global warming pressures if replicated on a wider scale."

"UNITED NATIONS -- A five-year report out [Thursday] from a U.N. refugee agency goes to great lengths to say climate change is likely to increase human displacement among nations. What is less clear in the report is what can be done about it."

"LOS ANGELES -- Years of ferocious storms have threatened to gnaw away the western tip of a popular beachfront park two hours drive north of Los Angeles. Instead of building a 500-foot-long wooden defense next to the pier to tame the tide, the latest thinking is to flee."

"A planned carbon capture and storage plant in West Texas is being billed as the “cleanest coal plant in the world.” But can the $3 billion project help move the global power industry toward the elusive goal of low-carbon electricity, or is it just another way of perpetuating fossil fuels?"

"The world's air has reached what scientists call a troubling new milestone for carbon dioxide, the main global warming pollutant.

Monitoring stations across the Arctic this spring are measuring more than 400 parts per million of the heat-trapping gas in the atmosphere. The number isn't quite a surprise, because it's been rising at an accelerating pace. Years ago, it passed the 350 ppm mark that many scientists say is the highest safe level for carbon dioxide. It now stands globally at 395.