Ocean acidification
The science of the Anthropocene
Human impacts on global natural systems are large and diverse
Climate change is well known now as a major impact of humans on the planet. But climate change is only one of a wide range of ways in which humans are dramatically changing natural systems at the regional, continental and planetary levels. For instance, greenhouse gas emissions are the driver of anthropogenic climate change. But …
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CONTINUE READINGGoing, Going, Gone
Despite it’s depressing subject, Elizabeth Kolbert’s The Sixth Extinction is a great read. She travels around the world, from a “hotel” for endangered frogs in Panama to an outdoor biodiversity experiment in the Peruvian rainforest to an endangered rhino’s rectal exam in Cincinnati. Yet, there’s no denying that the topic is a downer. The title implies that we …
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CONTINUE READINGDear Washington Post: Chesapeake Bay *is* unbalanced
An article in the Washington Post yesterday ran with the headline, “Crabs, supersized by carbon pollution, may upset Chesapeake’s balance.” Not to nitpick, but Chesapeake Bay is unbalanced and has been that way for well over a century. The article references some interesting research from the University of North Carolina that looks at the effects …
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CONTINUE READINGSeaWorld Doesn’t Care THAT Much
As the father of an eight-year-old, I am painfully aware of the attractions of charismatic megafauna. Over the weekend, I took Rose to SeaWorld, pretty much the capital of charismatic megafauna, for an overnight with her YMCA youth group. We slept with the penguins, and saw lots of other — well, charismatic megafauna. The highlight …
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CONTINUE READINGLooking Ahead to 2050
Since New Year’s Eve is both a time for nostalgia and for looking ahead, it seems appropriate to see what the world will look like at mid-century. The world will be facing considerable challenges then. The population will be bigger. The United Nations predicts that the world population will grow by 2 billion to 9 …
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CONTINUE READINGOceans: the biggest loser from our international failure to address greenhouse gas emissions?
In this op-ed from Monday’s Los Angeles Times, UC San Diego scientists Tony Haymet and Andrew Dickson succinctly and directly summarizes the threat that ocean acidification poses to our world, and plead for reductions in carbon emissions. (My colleagues have blogged about ocean acidification before, here and here among other places.) Unfortunately, as my …
CONTINUE READINGOcean acidification gets new attention
Although EPA is beginning to pay attention, the rapidly increasing acidity of the oceans remains a little-known consequence of global atmospheric CO2 loading. But two recent events may be raising the public profile of ocean acidification. First, a National Research Council committee convened to examine the consequences of ocean acidification and make recommendations for a …
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CONTINUE READINGStill more on climate engineering
There’s a lot of enthusiasm in some circles for “geo-engineering” as a response to anthropogenic climate change, and a lot of skepticism about it in others. The appeal is obvious — controlling greenhouse gas emissions looks difficult, since our economies and many of our daily habits (at least in the developed nations, which are providing …
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CONTINUE READINGMore on reengineering – what about the oceans?
Regarding Dan’s post on reengineering the planet, one more shortcoming of the commonly discussed geoengineering solutions (even assuming they work exactly as designed and have none of the unintended consequences Dan, and others, fear) is that they are far from complete, leaving out entirely any remedy for ocean acidification, the “other” greenhouse gas problem. More info on …
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CONTINUE READINGAcid oceans coming to a beach, and theater, near you
Global warming has gotten so much attention lately that the public has largely overlooked another, independent consequence of rising CO2 concentrations: acidic oceans. As discussed by Dan earlier this year, for many years the oceans have been silently absorbing CO2 and thereby buffering against even higher atmospheric GHG levels, staving off more warming — but with potentially devastating consequences …
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