Category Archives: Climate change impacts

End of climate exceptionalism

by Judith Curry

A new report from the IPCC implies that “climate exceptionalism”, the notion that global warming is a problem like no other, is coming to an end. – Economist

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IPCC AR5 WG2 Report – draft SPM

by Judith Curry

The WG2 Report will be officially released on Monday.  Here is what people are saying about a leaked version of the Summary for Policy Makers.

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Livestock’s long shadow

by Judith Curry

In all, livestock farming produces 8-18% of greenhouse-gas emissions. It is the main contributor to the build-up of nitrogen and phosphorus in the world’s soils, producing too much ammonia (which is caustic), nitrous oxide (a greenhouse gas) and dead zones in oceans (the result of excess phosphorus). – The Economist

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Hearing: A Factual Look at the Relationship Between Climate and Weather

by Judith Curry

The U.S. House Subcommittee on  Environment is holding a Hearing today: A Factual Look at the Relationship Between Climate and Weather.

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Selection bias in climate model simulations

by Judith Curry

Selection biases in information processing occur when expectations affect behavior in a manner that makes those expectations come true.

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Impact(?) of natural variability on Nebraska drought

by Judith Curry

So, would you turn down a $44K grant to investigate the natural variability of drought in Nebraska?

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Interpreting the fire weather in New South Wales

by Mark Goldstone

On October 21st UN climate chief Christiana Figueres made the unusual statement that the bushfire crisis in NSW is “absolutely” linked to climate change.

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Bangladesh sea level rise

by Judith Curry

On the complexity of sea level rise in the Bangladesh delta – global warming may be the least of their concerns.

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Did the AR5 take the ‘dangerous’ out of AGW?

by Judith Curry

Section 12.5.5 in the WG1 Report provides some important insights on what is most commonly regarded as the ‘dangerous’ aspects of AGW.

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Shell game

by Rud Istvan

Is ocean acidification the  new global warming?

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Unintended consequences of energy policy on biodiversity

by Judith Curry

Mitigation, adaptation, and the threat to biodiversity.

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Politics of the 2C target

by Judith Curry

The modification of the 2C climate target will put an end to the vision of a “science-based” climate policy – Oliver Geden

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Ice sheet collapse?

by Rud Istvan

One of the catastrophes associated with anthropogenic global warming (CAGW) is a rising sea.     Is the projected rise and rate unprecedented? Will it be catastrophic?                                   

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Impact of climate, population and CO2 on water resources

by Judith Curry

Increasing CO2 may actually help relieve the water stress associated with increasing global population.

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Himalayan melt impacts

by Judith Curry

A new publication in Nature Geoscience projects an increase in runoff from Himalayan catchmants during the 21st century, despite a decline in glacier size.

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Ocean acidification discussion thread

by Judith Curry

Today the surface ocean is almost 30% more acidic than it was in pre-industrial times, and over the next few decades, the level of acidity of the surface ocean will continue to rise without deliberate action to reduce carbon dioxide emissions. Increasingly this will cause major problems for many marine organisms like shellfish and corals. – Scott Doney

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Climate Change Officers

by Judith Curry

Climate change officers are professionals who apply knowledge of climate-related risks and opportunities to their organizations’ near-term and long-term strategies. These professionals help their organizations to adapt and thrive in a world of climate uncertainty, and guide their organizations toward strategic decisions that are simultaneously strategic for the organization and beneficial to the climate.  -  Association of Climate Change Officers

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The inevitable climate catastrophe

by Judith Curry

What can we learn from climate of the 17th century about future climate catastrophes?

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Predictions of climate change impacts on fisheries can be a mirage

by Judith Curry

A novel method for causal inference has been motivated by .  .  .  sardines.

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Draft U.S. Climate Assessment Report

by Judith Curry

The U.S. National Climate Assessment and Development Advisory Committee (NCADAC) has released a draft of its report for public comment.

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Peak (?) farmland

by Judith Curry

We are confident that we stand on the peak of cropland use, gazing at a wide expanse of land that will be spared for Nature. – Ausubel, Werner and Waggoner

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Is fat good?

by Judith Curry

Epidemiologists struggle to explain a study that challenges a core belief:  Fat will kill you. – William Saletan

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Never look a polar bear in the eye

by Judith Curry

Advocates and scientists have tied the Earth’s fate to that of the polar bear. But what happens if this lumbering giant proves more resilient than the rest of us? – Zac Unger

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Uncertainty in health impacts of climate change

by Judith Curry

Health risks arise from the interaction of uncertain future climatic changes with complex ecological, physical, and socio-economic systems, which are simultaneously affected by numerous other changes, e.g. globalisation, demographic changes, and changes in land use, nutrition, health care quality. Policymaking on adaptation to health risks of climate change thus faces substantial uncertainty. – Wardekker et al.

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Apocalypse not (?)

by Judith Curry

Predictions of global famine and the end of oil in the 1970s proved just as wrong as end-of-the-world forecasts from millennialist priests. Yet there is no sign that experts are becoming more cautious about apocalyptic promises. If anything, the rhetoric has ramped up in recent years. Echoing the Mayan calendar folk, theBulletin of the Atomic Scientists moved its Doomsday Clock one minute closer to midnight at the start of 2012, commenting: “The global community may be near a point of no return in efforts to prevent catastrophe from changes in Earth’s atmosphere.” – Matt Ridley

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