As the global population grows, the demand for food increases while arable land shrinks. 

Millions of people die prematurely every year from diseases and cancer caused by air pollution.

Rainbows are some of the most spectacular optical phenomena in the natural world and Hawai‘i has an amazing abundance of them.

Does a warmer climate mean more dry land? For years, researchers projected that drylands — including deserts, savannas and shrublands — will expand as the planet warms, but new research from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) challenges those prevailing views.

A new study, published this week in Proceedings of the National Academy of Sciences, reveals that nitrogen-fixing trees play an underrecognized role in recovering tropical forests by enriching nutrient-poor soils with scarce elements such as phosphorus and molybdenum.

A long-lasting, successful relationship between scientists at the MBL Ecosystems Center and the citizen-led Buzzards Bay Coalition has garnered a long-term record of water quality in the busy bay that lies west of Woods Hole. 

The slowdown in global warming that was observed at the end of last century was reflected by a decrease in malaria transmission in the Ethiopian highlands, according to a study led by the Barcelona Institute for Global Health (ISGlobal), an institution supported by "la Caixa" Foundation, and the University of Chicago. 

Global warming would be worse were it not for extra vegetation that changes how and where heat builds up across the landscape.

Severe river floods are escalating in temperate climates and putting at risk populations, livelihoods and property.

The mountain forests of Tanzania are more than 9,300 miles away from Salt Lake City, Utah. But, as in eastern Africa, the wild places of Utah depend on a diversity of birds to spread seeds, eat pests and clean up carrion.