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Landscape determinants of pelagic and benthic primary production in northern lakes.

Published in Global change biology

Global change affects gross primary production (GPP) in benthic and pelagic habitats of northern lakes by influencing catchment characteristics and lake water biogeochemistry. However, how changes in key environmental drivers manifest and impact total (i.e., benthic + pelagic) GPP and the partitioning of total GPP between habitats represented by th...

Effects of climate change on forest plantation productivity in Chile.

Published in Global change biology

Forest plantations in Chile occupy more than 2.2 million ha and are responsible for 2.1% of the GDP of the country's economy. The ability to accurately predictions of plantations productivity under current and future climate has an impact can enhance on forest management and industrial wood production. The use of process-based models to predict for...

CO2 isotopes as tracers of firn air diffusion and age in an Arctic ice cap with summer melting, Devon Island, Canada

Firn air and ice have been sampled and analyzed for trace gases (CO2, N2O, CH4, and CO) and isotopes (14C, 13C, and 18O of CO2; 3H of ice) at 3 m intervals from the surface to the depth of closure at 60 m on the Devon Island Ice Cap, a low-elevation permanent glacier in the Canadian Arctic Islands, to investigate firn diffusion and the effects of s...

Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica

The recent completion of drilling at Vostok station in East Antarctica has allowed the extension of the ice record of atmospheric composition and climate to the past four glacial-interglacial cycles. The succession of changes through each climate cycle and termination was similar, and atmospheric;and climate properties oscillated between stable bou...

Carbon Capture, Utilization, and Storage in the Southeastern U.S.: Cost Competitive?

White paper published by SEI that will be hosted on the SEI website. / Achieving net zero carbon emissions will require a combination of renewable energy technologies and carbon capture. Indeed, a great deal of investment has been devoted to the source side of the ledger, such as replacing fossil fuels with renewables, making combustion processes m...

High syngas selectivity and near pure hydrogen production in perovskite oxygen carriers for chemical looping steam metha...

Chemical looping steam methane reforming (CL-SMR) provides an attractive route for hydrogen and syngas co-production through two successive steps of methane oxidation and steam splitting. However, there is also carbon formation through CH4 cracking which hampers the production of syngas (H-2 and CO) and the following pro-duction of pure H-2. This w...

Elevation-dependent temperature response in early Eocene using paleoclimate model experiment

Published in Environmental Research Letters

Mountains become warmer with elevation in response to greenhouse gas warming, an effect known as elevation-dependent warming. The Eocene is considered a replica of the future climate in an epoch with high atmospheric carbon dioxide concentration (CO2). Therefore, the topographic features of the Eocene strata are of interest. However, obtaining prox...