Washington, DC—Offering a rare insider analysis of the climate assessment process, Carnegie’s Katharine Mach and colleagues at the Department of Global Ecology examined the writing and editing...
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Washington, DC— It is imperative that society learn more about how climate change contributes to episodic and very severe water quality impairments, such as the harmful algal bloom that caused...
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Washington, DC— It turns out that forests in the Andean and western Amazonian regions of South America break long-understood rules about how ecosystems are put together, according to new research led...
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Washington, DC— Climate change assessments must be more relevant to policymakers’ needs, say Carnegie’s Katharine Mach and Stéphane Hallegatte of the World Bank’s Climate Change Policy Team. In a...
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The results from a suite of environmental mercury studies done by the Carnegie Amazon Mercury Project (CAMEP) was used by the Peruvian government for the decision to announce this state of emergency...
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The results from a suite of environmental mercury studies done by the Carnegie Amazon Mercury Project (CAMEP) was used by the Peruvian government for the decision to announce this state of emergency...
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Rebecca Albright, a postdoc in the Caldeira lab at Global Ecology since 2014, is the latest recipient of the newly formed Carnegie Postdoctoral Innovation and Excellence (PIE) Awards. She has been...
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Antarctica
New work from an international team including Carnegie’s Ken Caldeira demonstrates that the planet’s remaining fossil fuel resources would be sufficient to melt nearly all of Antarctica if burned,...
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Coral reefs are havens for marine biodiversity and underpin the economies of many coastal communities. But they are very sensitive to changes in ocean chemistry resulting from greenhouse gas emissions, as well as to pollution, warming waters, overdevelopment, and overfishing. Reefs use a mineral...
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Carnegie researchers are developing new scientific approaches that integrate phylogenetic, chemical and spectral remote sensing perspectives - called Spectranomics - to map canopy function and biological diversity throughout tropical forests of the world. Mapping the composition and chemistry of...
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Until now, computer models have been the primary tool for estimating photosynthetic productivity on a global scale. They are based on estimating a measure for plant energy called gross primary production (GPP), which is the rate at which plants capture and store a unit of chemical energy as biomass...
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Ken Caldeira has been a Carnegie investigator since 2005 and is world renowned for his modeling and other work on the global carbon cycle; marine biogeochemistry and chemical oceanography, including ocean acidification and the atmosphere/ocean carbon cycle; land-cover and climate change; the long-...
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For three decades, Chris Field has pioneered novel approaches to ecosystem research to understand climate and environmental changes. He is the founding director of the Carnegie Institution’s Department of Global Ecology on the Stanford University campus—home to a small, but remarkably productive...
Meet this Scientist
Anna Michalak joined Carnegie in 2011 from the Department of Civil and Environmental Engineering at the University of Michigan. Her research focuses on characterizing complexity and quantifying uncertainty in environmental systems to improve our understanding of these systems and our ability to...
Meet this Scientist
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Washington, D.C.— Forest conservation is an issue of major concern to communities large and small around the globe. But gathering the monitoring data needed to make the right decisions has proven...
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PBS Interviews Chris Field at the Peru Climate Talks (at 6:30) 12-11-14
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Washington, D.C.—Global Ecology NSF Fellow Mary Whelan has been honored with Carnegie’s fifth Postdoctoral Innovation and Excellence (PIE) Award. These prizes are made through nominations from the...
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Explore Carnegie Science

December 6, 2017

Washington, DC— The climate models that project greater amounts of warming this century are the ones that best align with observations of the current climate, according to a new paper from Carnegie’s Patrick Brown and Ken Caldeira published by Nature.  Their findings suggest that the models used by the Intergovernmental Panel on Climate Change, on average, may be underestimating future warming.

Climate model simulations are used to predict how much warming should be expected for any given increase in the atmospheric concentration of carbon dioxide and other greenhouse gases.

“There are dozens of prominent global climate models and they all project different amounts of

Carnegie Science, Carnegie Institution, Carnegie Institution for Science, Carnegie Airborne Observatory, Greg Asner.
December 4, 2017

Washington, DC— About 40 percent of northern Malaysian Borneo’s carbon stocks exist in forests that are not designated for maximum protections, according to new remote sensing and satellite mapping from Carnegie’s Greg Asner and his colleagues.

Asner’s flying laboratory, the Carnegie Airborne Observatory, was able to map carbon stocks that—together with satellite imaging and other geospatial data—will guide conservation efforts undertaken by the Sabah Forestry Department in Malaysian Borneo, the Southeast Asia Rainforest Research Partnership (SEARRP), the PACOS Trust, BC Initiative and other organizations.

“We are proud to be part of this groundbreaking endeavor in the

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We’ve all seen the photos. Long panel tables full of people from around the globe hashing out the intricacies of how to best fight climate change for endless grueling hours.

But what’s it like to be in the room?

Carnegie’s Geeta Persad will be there and she’ll checking in with us periodically to offer an insider’s look at the 3rd Conference of

Carnegie Science, Carnegie Institution, Carnegie Institution for Science, Shutterstock
October 9, 2017

Washington, DC— There is considerable opportunity for generating wind power in the open ocean, particularly the North Atlantic, according to new research from Carnegie’s Anna Possner and Ken Caldeira. Their work is published by Proceedings of the National Academy of Sciences.

Because wind speeds are higher on average over ocean than over land, wind turbines in the open ocean could in theory intercept more than five times as much energy as wind turbines over land. This presents an enticing opportunity for generating renewable energy through wind turbines. But it was unknown whether the faster ocean winds could actually be converted to increased amounts of electricity.

“Are

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The Carnegie Airborne Observatory (CAO), developed by GregAsner, is a fixed-wing aircraft that sweeps laser light across the vegetation canopy to image it in brilliant 3-D. The data can determine the location and size of each tree at a resolution of 3.5 feet (1.1 meter), a level of detail that is unprecedented. By combining field surveys with this airborne mapping and high-resolution satellite monitoring the team has been able to detail myriad ecological features of forests around the world.

As one example, Carnegie scientists with the Peruvian Ministry of Environment mapped the true extent of gold mining in the biologically diverse region of Madre de Dios in the Peruvian Amazon.

Monitoring tropical deforestation and forest degradation with satellites can be an everyday activity for non-experts who support environmental conservation, forest management, and resource policy development.

Through extensive observation of user needs, the Greg Asner team developed CLASlite ( the Carnegie Landsat Analysis System--Lite) to assist governments, nongovernmental organizations, and academic institutions with high-resolution mapping and monitoring of forests with satellite imagery.

CLASlite is a software package designed for highly automated identification of deforestation and forest degradation from remotely sensed satellite imagery. It incorporates state-of-the

Coral reefs are havens for marine biodiversity and underpin the economies of many coastal communities. But they are very sensitive to changes in ocean chemistry resulting from greenhouse gas emissions, as well as to pollution, warming waters, overdevelopment, and overfishing. Reefs use a mineral called aragonite, a naturally occurring form of calcium carbonate, CaCO3, to make their skeletons.  When carbon dioxide, CO2, from the atmosphere is absorbed by the ocean, it forms carbonic acid—the same stuff that makes soda fizz--making the ocean more acidic and thus more difficult for many marine organisms to grow their shells and skeletons and threatening coral reefs globally.

Ken

Anna Michalak’s team combined sampling and satellite-based observations of Lake Erie with computer simulations and determined that the 2011 record-breaking algal bloom in the lake was triggered by long-term agricultural practices coupled with extreme precipitation, followed by weak lake circulation and warm temperatures. The bloom began in the western region in mid-July and covered an area of 230 square miles (600 km2). At its peak in October, the bloom had expanded to over 1930 square miles (5000 km2). Its peak intensity was over 3 times greater than any other bloom on record. The scientists predicted that, unless agricultural policies change, the lake will continue to experience

Carnegie Science, Carnegie Institution for Science, Carnegie Institution

Greg Asner is a staff scientist in Carnegie's Department of Global Ecology and also serves as a Professor in the Department of Earth System Science at Stanford University. He is an ecologist recognized for his exploratory and applied research on ecosystems, land use, and climate change at regional to global scales.

Asner graduated with a bachelor’s degree in engineering from the University of Colorado, Boulder, in 1991. He earned master's and doctorate degrees in geography and biology, respectively, from the University of Colorado in 1997. He served as a postdoctoral fellow in the Department of Geological and Environmental Sciences at Stanford University until he joined the

For three decades, Chris Field has pioneered novel approaches to ecosystem research to understand climate and environmental changes. He is the founding director of the Carnegie Institution’s Department of Global Ecology on the Stanford University campus—home to a small, but remarkably productive team of researchers who investigate the basics of climate change. Field has authored more than 200 scientific publications and is cochair of the U. N.'s Intergovernmental Panel on Climate Change (IPCC) Working Group 2. The IPCC Fourth Assessment, for which Field was a coordinating author, was published in 2007. He was coeditor of the March 2012 IPCC Special Report on Managing the Risks of Extreme

Anna Michalak joined Carnegie in 2011 from the Department of Civil and Environmental Engineering at the University of Michigan. Her research focuses on characterizing complexity and quantifying uncertainty in environmental systems to improve our understanding of these systems and our ability to forecast their variability. She is looking at a variety of interactions including atmospheric greenhouse gas emission and sequestration estimation, water quality monitoring and contaminant source identification, and use of remote sensing data for Earth system characterization.

The common theme of her research is to develop and apply spatiotemporal statistical data methods for optimizing the

Joe Berry has been a Carnegie investigator since 1972. He has developed powerful tools to measure local and regional exchanges of carbon over spaces of up to thousands of square miles. He uses information at the plant scale to extrapolate the carbon balance at regional and continental scales.

According to ISI's Web of Science, two of Joe Berry's papers passed extremely high, rarefied citation milestones. The 1980  paper “A biochemical model of photosynthetic CO2 assimilation in leaves of C3 species,” has had over 1,500th citations. His 1982 paper “On the relationship between carbon isotope discrimination and the intercellular carbon dioxide concentration in leaves” passed its 1,