News tagged with forested areas

Bitsy beetle warms Canada, study says

An army of rice-grain-sized beetles, attracted by warming weather, has moved into Canada's western forests, where its tree massacre is causing the mercury to rise yet further, a study said Sunday.

Nov 25, 2012
4.6 / 5 (9) 35

Forest and savanna can switch quickly

(PhysOrg.com) -- Two recent studies have found that environmental changes can bring previously stable forests and grasslands to tipping points that produce sudden large-scale and sometimes irreversible changes ...

Oct 14, 2011 report
4.4 / 5 (8) 1 | with audio podcast

Study: Nation's urban forests losing ground

National results indicate that tree cover in urban areas of the United States is declining at a rate of about 4 million trees per year, according to a U.S. Forest Service study published recently in Urban Forestry & Urban Gr ...

Feb 23, 2012
5 / 5 (3) 0