Category «Climate Change»

What’s going on with the Greenland ice sheet? It’s losing ice faster than forecast and now irreversibly committed to at least 10 inches of sea level rise

Alun Hubbard is a field glaciologist who has worked on ice sheets for more than 30 years. The past few years in particular have been unnerving for the sheer rate and magnitude of change underway. Current teachings that ice sheets respond over millennial time scales is definitely not what we’re seeing today. If every year were like 2012, when Greenland experienced a heat wave, that irreversible commitment to sea level rise would triple. That’s an ominous portent given that these are climate conditions we have already seen, not a hypothetical future scenario.

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Subjects: Climate Change, Energy, Environmental Law

Light pollution is disrupting the seasonal rhythms of plants and trees, lengthening pollen season in US cities

City lights that blaze all night are profoundly disrupting urban plants’ phenology – shifting when their buds open in the spring and when their leaves change colors and drop in the fall. New research Yuyu Zhou coauthored shows how nighttime lights are lengthening the growing season in cities, which can affect everything from allergies to local economies. In the study, Zhous and his colleagues analyzed trees and shrubs at about 3,000 sites in U.S. cities to see how they responded under different lighting conditions over a five-year period. Plants use the natural day-night cycle as a signal of seasonal change along with temperature.

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Subjects: Climate Change, Energy, Environmental Law, Healthcare
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