World Population and Food Security: Adding Some Granularity

Guest essay by David Archibald Things have improved over the last 25 years according to this recent WUWT post. The future doesn’t look so rosy if you look at a larger data set. The world’s population growth will at some stage hit a resource constraint with dire consequences. How that will play out in detail…

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Map of the Gila River watershed-drainage basin — located in New Mexico and Arizona.

Claim: More Frequent Less Intense Rainfall is Now a Problem

Guest essay by Eric Worrall Lecturer in Physical Geography Michael Singer has noticed that climate hasn’t brought greater precipitation, as Trenberth predicted it would – but he still worries about the impact of climate change on watersheds. How understanding regional rainstorms will help the world manage climate change December 8, 2017 2.03am AEDT Michael Singer…

Study: a ‘statistically significant downward trend since 1950 exists’ in hurricane landfalls

This is going to rattle some cages, while at the same time vindicating Dr. Roger Pielke Jr. A new study in Geophysical research Letters studies hurricane activity in the Atlantic concludes that a “statistically significant downward trend since 1950 exists”. An Energetic Perspective on United States Tropical Cyclone Landfall Droughts Authors Ryan E. Truchelut, Erica M. Staehling Abstract…

Narwhals freeze? Really?

Guest essay by Mike Jonas The UK’s public broadcaster, the BBC, reported on 7 December 2017 that: Narwhal escape: Whales freeze and flee when frightened Scientists who fitted heart rate-monitoring tags to Arctic narwhals have discovered a strange paradox in how the animals respond to threats. When these tusked whales are frightened, their hearts slow,…

Claim: Transformation to wind and solar achievable with low indirect GHG emissions

From the POTSDAM INSTITUTE FOR CLIMATE IMPACT RESEARCH (PIK) Different low carbon technologies from wind or solar energy to fossil carbon capture and sequestration (CCS) differ greatly when it comes to indirect greenhouse gas emissions in their life cycle. This is the result of a comprehensive new study conducted by an international team of scientists that…