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CURRENT CONTENTS/Earth Science

Nature Climate Change v.1 n.1 2011

seoulfric 2011. 4. 26. 14:43


ISSN 1758-678X

Commentaries

The biological world is responding rapidly to a changing climate, but attempts to attribute individual impacts to rising greenhouse gases are ill-advised.

A global private carbon-labelling scheme for consumer products could fill the climate-policy gap by influencing the behaviour of consumers and corporate supply chains.

    • Michael P. Vandenbergh,
    • Thomas Dietz &
    • Paul C. Stern

Features

How will our choices shape the future? That's a question researchers are keen to answer, and with a new approach to how the climate community develops scenarios, they are coming that bit closer to answering it.

Climate scientists are under pressure to make their data — and their methods — more openly available, both to fellow scientists and the public. Now, open-access climate science is becoming easier than ever.

How much of an influence are our peers when it comes to being green?

    • Chris Woodside

Books and Arts

Mason Inman reviews Hot: Living Through the Next Fifty Years on Earth by Mark Hertsgaard

Policy Watch

 

Adaptation is still mitigation's poor cousin, in political and economic terms. However, efforts to better define adaptation — and the areas that would benefit most from climate aid — may help in achieving parity, finds Sonja van Renssen.

Market Watch

With a burgeoning population and a warming climate, Anna Petherick asks how the world might quell food-price volatility in the long-term.

Blogosphere

Words of caution on communication.

    • Olive Heffernan

Research Highlights

 

News and Views

Contrails formed by aircraft can evolve into cirrus clouds indistinguishable from those formed naturally. These 'spreading contrails' may be causing more climate warming today than all the carbon dioxide emitted by aircraft since the start of aviation.

    • Olivier Boucher

See also: Article by Ulrike Burkhardt et al.

Engaging the public with climate change has proved difficult, in part because they see the problem as remote. New evidence suggests that direct experience of one anticipated impact — flooding — increases people's concern and willingness to save energy.

    • Elke U. Weber

See also: Letter by A. Spence et al.

The impact of climate change on food production remains uncertain, particularly in the tropics. Research that exploits the results of historical crop trials indicates that Africa's maize crop could be at risk of significant yield losses.

    • Maximilian Auffhammer

See also: Letter by David B. Lobell et al.

Flowering plants have expanded rapidly in Antarctica over the past 50 years. A study now reveals that an efficient way of acquiring nitrogen from protein-rich soils as they decompose has allowed these plants to take full advantage of a warming climate.

    • Nicoletta Cannone

See also: Letter by Paul W. Hill et al.

Recovery of the ozone hole and increasing greenhouse-gas concentrations have opposite effects on the jet stream. New model experiments indicate that they will cancel each other out over coming decades, leaving storm tracks at a stand still.

The Clean Development Mechanism was designed to allow emissions reductions and sustainable development to proceed hand-in-hand. Analysis now addresses the question of whether — 14 years after its creation — it can be reformed sufficiently to serve current needs.

Warming of the upper ocean may stimulate plankton metabolism, enhancing photosynthesis. This effect has received little attention, but new research suggests that it could be important enough to spur a net increase in global ocean productivity.

    • Michael Behrenfeld

Perspective

Explaining climate risks and uncertainties to non-specialists is fraught with difficulties. An array of principles and guidelines has been developed to aid this process, but there is little evidence for their efficacy. An empirical approach is thus needed to identify the communications approaches that will effectively convey the practical implications of large, complex, uncertain physical, biological and social processes. An ambitious interdisciplinary initiative will be required to deliver effective climate science communication, including institutional support to sustain it.

    • Nick Pidgeon &
    • Baruch Fischhoff

Letters

An analysis of over 20,000 historical African maize trials suggests the crop will better cope with climate change under rain-fed management. For a 1°C temperature rise, optimal rain-fed conditions would mean 65% of maize-growing areas in Africa would be likely to experience yield losses, compared with 100% under drought conditions.

    • David B. Lobell,
    • Marianne Bänziger,
    • Cosmos Magorokosho &
    • Bindiganavile Vivek

See also: News and Views by Maximilian Auffhammer

Direct experience of climate impacts is thought to increase concern about climate change. New survey data provide empirical evidence that those who have experienced flooding tend to feel more concern and perceive less uncertainty about climate change, and have greater willingness to change behaviour to save energy.

    • A. Spence,
    • W. Poortinga,
    • C. Butler &
    • N. F. Pidgeon

See also: News and Views by Elke U. Weber

Nitrogen availability is frequently a key factor limiting plant growth, even when other conditions are favourable. Research demonstrates that via a short circuit in the terrestrial nitrogen cycle, Antarctic hair grass acquires soil nitrogen more efficiently than competing mosses, which may explain its success in a warming maritime Antarctic.

    • Paul W. Hill,
    • John Farrar,
    • Paula Roberts,
    • Mark Farrell,
    • Helen Grant,
    • + et al.

See also: News and Views by Nicoletta Cannone


Articles

Aviation is known to affect climate by changing cloudiness, but the magnitude of this effect remains uncertain. A modelling study indicates that changes in cloudiness associated with spreading of the line-shaped contrails that form behind aircraft may cause almost an order of magnitude more warming than the contrails alone.

    • Ulrike Burkhardt &
    • Bernd Kärcher

See also: News and Views by Olivier Boucher

Vehicle-emission standards for non-carbon-dioxide pollutants have recognized benefits for air quality. An interdisciplinary analysis now shows that adopting tight on-road emission standards for these pollutants would also mitigate short-term climate change and provide large benefits for human health and food security in a number of developing countries.

    • Drew Shindell,
    • Greg Faluvegi,
    • Michael Walsh,
    • Susan C. Anenberg,
    • Rita Van Dingenen,
    • + et al.

See also: Beyond Boundaries

Beyond Boundaries

NASA scientist Drew Shindell teamed up with experts in health, agriculture and economics to investigate the potential impacts of imposing tight vehicle-emission standards in developing countries.

See also: Article by Drew Shindell et al.