Author Archives: castirpe

Natural Beauty at Risk

How will climate change affect our national parks? These natural areas cannot be protected from the global stresses of climate change, which threaten both plant and animal species. Is there anything park managers can do to prepare for coming changes in … Continue reading

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Spring Comes Sooner to Urban Heat Islands

Cities are often warmer than surrounding rural areas due to high impervious cover (cement, asphalt, etc.), a phenomenon known as the “urban heat island effect”. This effect has been shown to cause plants in urban environments to leaf out earlier … Continue reading

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Visualizing the Highs and Lows of Lake Mead

Lake Mead, above the Hoover Dam, is at its lowest level since it was first filled in 1937, and it has reached this record low two years in a row. Given that its lowest level generally occurs during late June … Continue reading

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Widespread Warmth Envelops Greenland

In the month of April, Greenland surface temperatures were much warmer than long-term averages–sometimes by as much as 20ºC. This temperature anomaly was observed by NASA’s MODIS equipment. Of particular concern are the high temperatures in the interior of the … Continue reading

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Help pollinators!

Now that spring has finally arrived in the northeast, it’s time to think about the growing season–and about the pollinators that many of our plants are dependent upon: bees, butterflies, and bats, to name a few. However, these pollinators are … Continue reading

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