Airplane contrails have little impact on climate, but, contrails are an interesting surrogate for what clouds may do in the future.
Alas, the size of this year’s ozone hole over Antarctica was among the largest ever. And the remaining ozone layer was exceptionally thin.
Measures of Earthshine suggest that about 30% of the Sunlight that the Earth receives is reflected back to space.
The history of lead pollution is the opening chapter in the history of human impacts on global biogeochemistry.
If we could do even something small about the rise of N2O in Earth’s atmosphere, it could have a big contribution to solving the problem of global climate change.
Seeing Bald Eagles along the coast of Maine this summer makes me think of the good things that have come from environmental science
When the EPA suggests regulating the emissions of mercury from power plants, the immediate question is how much of the mercury found in downwind environments is from the powerplants and how much is natural.
These observations of rainfall chemistry should reinforce the notion that the atmosphere is not a global commons where stuff can be deposed willy-nilly.
Methane is one of several “greenhouse” gases that we must manage if we are to reduce the probability of harmful disruptions to Earth’s climate.
Fixed nitrogen helps in the growth of crops and forests, but when it escapes from the point of application, it causes a number of environmental problems that should concern us all. For policy makers, nitrogen may be the new carbon.