Category Archives: Climate change impacts

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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Senate hearing on the Latest Climate Change Science and Local Adaptation Measures

by Judith Curry

From the website of the Committee on Environment and Public Works:

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Cato’s Impact Assessment

by Judith Curry

The Cato Institute has a new report entitled ADDENDUM: Global Climate Change Impacts in the United States, which is an addendum to the 2009 USGCRP Report with the same title.

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What global warming looks like (?)

by Judith Curry

But since at least 1988, climate scientists have warned that climate change would bring, in general, increased heat waves, more droughts, more sudden downpours, more widespread wildfires and worsening storms. In the United States, those extremes are happening here and now. – Seth Borenstein (AP)

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A new perspective on drought in the American southeast

by Judith Curry

Imagine that you are planning for water resources in the greater Atlanta region for the next 50 years.  Which information would be more helpful:

A.  Global climate model simulations for the 21st century that are downscaled for the region

B.  Paleoclimatic analysis for the last 400 years of droughts and wet periods.

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State shift (?) in Earth’s biosphere

by Judith Curry

A  new study published study in Nature alerts to impending catastrophic developments – this time not mainly based on climate change impacts but on wider developments caused by resource use. 

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Sea level rise discussion thread

by Judith Curry

Recently, there have been a number of interesting papers on sea level rise.  Let’s take a look.

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Perils of apocalyptic thinking

by Judith Curry

The last time apocalyptic anxiety spilled into the mainstream to the extent that it altered the course of history — during the Reformation — it relied on a revolutionary new communications technology: the printing press. In a similar way, could the current surge in apocalyptic anxiety be attributed in part to our own revolution in communications technology?

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Climate change responses in the developing world

by Judith Curry

This past week, there have been a number of articles describing a range of responses to climate change from different countries.

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Psychological(?) effects of global warming

by Judith Curry

Global warming in the coming years will foster trauma, depression, violence, alienation, substance abuse, suicide, psychotic episodes, post traumatic stress disorder and many other mental health-related conditions.

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Conservation in the Anthropocene

by Judith Curry

Conservationists need to work with development, not condemn it as leading to the end of nature. In truth, nature’s resilience has been overlooked, its fragility “grossly overstated.” Areas blasted by nuclear radiation are bio-diverse. Forest cover is rising in the Northern Hemisphere even as it declines globally.

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NRC’s artless untruths on climate change and food security

by Rud Istvan

Here is a recent example of artful lack of disclosure in the climate change debate, on the possible negative impacts of climate change on food security.

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Climate change & war

by Judith Curry

Overall, the research reported here offers only limited support for viewing climate change as an important influence on armed conflict. However, framing the climate issue as a security problem could possibly influence the perceptions of the actors and contribute to a self-fulfilling prophecy.

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Evaluative premises

by Judith Curry

Suppose, for the sake of argument, that the globe is warming. What follows, as a normative matter? 

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Reducing the future to climate

by Judith Curry

One hundred years ago, a popular theory contended that various aspects of climate determined the physiology and psychology of individuals, which in turn defined the behavior and culture of the societies that those individuals formed. As the ideological wars of the twentieth century re- shaped political and moral worlds, environmental determinism became discredited and marginalised within mainstream academic thought. Yet at the beginning of a new century with heightening anxieties about changes in climate, the idea that climate can determine the fate of people and society has re-emerged in the form of ‘climate reductionism’. 

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New research on the links between climate change and conflicts

by Judith Curry

the emerging links between climate, conflict, and national security are far from being thoroughly understood

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A better climate for disaster risk management

by Judith Curry

how building new capacity, tools and partnerships between disaster risk managers and climate information providers can lead to improved disaster risk management, including prevention, preparedness and response.

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Climate Smart Agriculture

by Judith Curry

In 2010 a cluster of United Nations and pan-African organizations released a little book entitlted “Climate Smart Agriculture.” Climate Smart Agriculture (CSA) “seeks to incease sustainable productivity, strengthen farmers’ resilience, reduce agriculture’s greenhouse gas emissions and increase carbon sequestration.” The little book and the concept are getting a lot of attention here at COP17.  [link]

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IPCC Special Report on Extreme Events

by Judith Curry

The IPCC has just published the Summary for Policymakers from the forthcoming Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation (SREX).

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New report on climate change and security

by Judith Curry

Mother Jones has an article entitled “CIA’s Weather Underground.”  Its closing sentence:

In this political climate, it’s no wonder the CIA declined to discuss its global-warming research for this article. For the time being, the climate spooks have gone underground.

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