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Editorial : Beyond forest carbon
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The preservation of forests, both on land and in mangrove swamps, has received much attention in the move to protect biological carbon stores. Less conspicuous ...
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Carbon sink, Carbon stocks, Terrestrial ecosystems, Climate Change, Coastal ecosystems, Lichens, Seagrass Beds, Living Shoreline, Carbon sequestration, Carbon p...
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Reduction in carbon uptake during turn of the century drought in western North America
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Fossil fuel emissions aside, temperate North America is a net sink of carbon dioxide at present1–3. Year-to-year variations in this carbon sink are linked to ...
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Continuous flux of dissolved black carbon from a vanished tropical forest biome
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Humans have used fire extensively as a tool to shape Earth’s vegetation. The slash-and-burn destruction of Brazil’s Atlantic forest, which once covered over...
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Fire frequency, Human priorities, Human-occupied landscapes, Climate Change, Land Use, Carbon flux, Forests, Rivers, Carbon cycle, Black carbon, Land use change...
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Strong increase in convective precipitation in response to higher temperatures
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Precipitation changes can affect society more directly than variations in most other meteorological observables1–3, but precipitation is difficult to characte...
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Impacts in the third dimension
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Despite reports of no trends in snow- and rainfall, rivers in the northwest USA have run lower and lower in recent decades. A closer look at high- and low-altit...
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Autopsy of two mega-heatwaves
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Record-breaking heatwaves in 2003 and 2010 surprised both the public and experts. Observations provide new insights into how temperatures escalated to unprecede...
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Temperature, Terrestrial ecosystems, Climate Change, Heat wave, Heat, Land surface, Extremes, Climate Change Performance Scorecard, Drought effects, Drought
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Brownness of organics in aerosols from biomass burning linked to their black carbon content
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Atmospheric particulate matter plays an important role in the Earth’s radiative balance. Over the past two decades, it has been established that a portion of ...
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Air quality, Biofuel, Land cover, Biosphere–atmosphere feedbacks, Carbon stocks, Conservation, Biomass burning, Carbon policy, Harvesting, Forest biomass, Car...
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Observational evidence for soil-moisture impact on hot extremes in southeastern Europe
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Climate change is expected to affect not only the means of climatic variables, but also their variabilities1,2 and extremes such as heat waves2–6. In particul...
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Trends in the sources and sinks of carbon dioxide
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Efforts to control climate change require the stabilization of atmospheric CO2 concentrations. This can only be achieved through a drastic reduction of global C...
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Recent acceleration of biomass burning and carbon losses in Alaskan forests and peatlands
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Climate change has increased the area affected by forest fires each year in boreal North America1,2. Increases in burned area and fire frequency are expected to...
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winds of change
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On average, terrestrial near-surface winds have slowed down in recent decades. This change will affect both wind energy and hydrology.
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Elevation-dependent influence of snow accumulation on forest greening
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Rising temperatures and declining water availability have influenced the ecological function of mountain forests over the past half-century. For instance, warmi...
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Forest mortality, Mountains, Carbon sink, Elevation, Carbon stocks, Climate Change, Land Use, Snow loss, Watersheds, Forests, Snow cover, Forest Management, Mid...
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Growth, carbon-isotope discrimination, and drought-associated mortality across a Pinus ponderosa elevational transect
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Drought- and insect-associated tree mortality at low-elevation ecotones is a widespread phenomenon but the underlying mechanisms are uncertain. Enhanced growth ...
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Comment:Nuclear winter is a real and present danger
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Models show that even a ‘small’ nuclear war would cause catastrophic climate change. Such findings must inform policy, says Alan Robock.
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Models, Climate Change, Small nuclear war, Dangerous, Nuclear winter
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Old-Growth Forests Can Accumulate Carbon in Soils
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1st paragraph: ld-growth forests have traditionally been considered negligible as carbon sinks because carbon uptake has been thought to be balanced by respirat...
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Oligocene CO2 Decline Promoted C4 Photosynthesis in Grasses
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C4 photosynthesis is an adaptation derived from the more common C3 photosynthetic pathway that con- fers a higher productivity under warm temperature and low at...
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Impacts of reforestation upon sediment load and water outflow in the Lower Yazoo River Watershed, Mississippi
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Among the world’s largest coastal and river basins, the Lower Mississippi River Alluvial Valley (LMRAV) is one of the most disturbed by human activities. This...
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The challenge of hot drought
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1st paragraph: rought is heating up around the warm- ing world. Particularly hot drought has cost more than US$40 billion and claimed 218 human lives since 2010...
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FIXING THE SKY
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When nations made plans to save the ozone layer, they didn’t factor in global warming. Quirin Schiermeier reports on how two environmental problems complicate...
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Moisture transport across Central America as a positive feedback on abrupt climatic changes
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Moisture transport from the Atlantic to the Pacific ocean across Central America leads to relatively high salinities in the North Atlantic Ocean1 and contribute...
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