In the southwest…. “The last 19 years have been equivalent to the worst 19 years of the worst mega-droughts on record,” said Park Williams, a professor of bioclimatology at Columbia University, at a presentation of the work. Only three recent mega-droughts—in the late 800s, the mid-1100s, and the late 1500s—were worse than the current period, …
Ben Cook, Justin Mankis, and Kevin Anchukaitis have an extremely helpful review paper in Current Climate Change Reports (ungated, thanks) sorting out what we do and don’t know about the impact of climate change on droughts. The IPCC’s Fifth Assessment Report was cautious in its assessment of our knowledge of drought, reporting only “low confidence” …
Continue reading ‘Drought, climate change – we know more than we used to’ »
Tom Philp had a great piece in Water Deeply last week about the language we use: Water policy becoming a prisoner of its own limited vocabulary, particularly when it comes to the weather. Here is a case that “drought” and “normal” belong in the dustbin of history, for their overuse can lead to the wrong conversation. …
Continue reading ‘“drought” – Philp on weather, water, and yesteryear’s language’ »
As I mentioned, this is the driest start to a water year in a century in Albuquerque. The preliminary Jan. 1 runoff forecast from the federal Natural Resources Conservation Service bears this out. The forecast, based on snow measurements, is stark. NRCS has 40 years of snow records, and for many sites, this is the …
Much of the “cultural cognition” problem around our climate politics and discourse derives from the politics of “mitigation” – the fact that the tools needed to reduce greenhouse gases are politically (culturally?) abhorrent to some, who in response dismiss the underlying science of climate change. This has the effect of foreclosing the second crucial climate …
Continue reading ‘governance, adaptation, and climate change’ »
Speaking earlier this month at the University of Colorado’s Martz Conference, Brad Udall offered what amounted to a bibliography, both helpful and deeply unnerving, of recent scientific literature documenting what we have learned in recent years about climate change and water in the Western United States, and what it tells us about our future prospects. …
Continue reading ‘Brad Udall’s western water climate change bibliography’ »