Disappearing glaciers, decreasing air quality and foundation species pushed to the brink of survival. America’s national parks are facing environmental threats that range from tiny invasive species to the planet-spanning impacts of climate change. In some cases, the situation is dire; in others, progress is being made. In aggregate, the issues point to how important — and how fragile — these special places are.
Sunday, June 10, 2012
Environmental woes imperil America's national parks
Disappearing glaciers, decreasing air quality and foundation species pushed to the brink of survival. America’s national parks are facing environmental threats that range from tiny invasive species to the planet-spanning impacts of climate change. In some cases, the situation is dire; in others, progress is being made. In aggregate, the issues point to how important — and how fragile — these special places are.
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