By Joanna A. Horemans, et al. Highlights • Daytime C sink capacity of the Brasschaat forest increased between 1999 and 2014. • Daytime NEE was most strongly correlated to atmospheric CO2 levels and soil solution pH. • Long term trend in night respiration was strongly correlated to ground water level. • Random variation in day/night NEE
By Karolina Pawlak and Malgorzata Kolodziejczak Abstract Ensuring food security has become an issue of key importance to countries with different degrees of economic development, while the agricultural sector plays a strategic role in improving food availability. The aim of this paper is to identify relationships between the undernourishment scale and selected characteristics describing the
Paper ReviewedZhu, J., Poulsen, C.J. and Otto-Bliesner, B.L. 2020. High climate sensitivity in CMIP6 model not supported by paleoclimate. Nature Climate Change 10: 378-379. The magnitude of long-term warming predicted in response to a given rise in atmospheric CO2 defines a model’s equilibrium climate sensitivity (ECS). Over the past four decades, the range of ECS predicted by various versions of
By P. Gosselin A commentary titled “‘Just don’t panic – also about climate change’” by Prof. Fritz Vahrenholt appearing at German site achgut.com tells us there’s no need for panic with respect to climate change, as leading scientists dial back earlier doomsday projections. No warming until 2050 Vahrenholt claims a negative Atlantic oscillation is ahead of us
By Roy W. Spencer, Ph.D. For the last 10 years I have consulted for grain growing interests, providing information about past and potential future trends in growing season weather that might impact crop yields. Their primary interest is the U.S. corn belt, particularly the 12 Midwest states (Iowa, Illinois, Indiana, Ohio, Kansas, Nebraska, Missouri, Oklahoma,
Over the past 150 years, global warming has more than undone the global cooling that occurred over the past six millennia, according to a major study published June 30 in Nature Research’s Scientific Data, “Holocene global mean surface temperature, a multi-method reconstruction approach.” The findings show that the millennial-scale global cooling began approximately 6,500 years ago
By Roland Hirsch New technologies in mass spectrometry are advancing research in climate science This is the second of a two-part posting based on a presentation prepared for the American Chemical Society’s National Meeting in March 2020. The meeting was cancelled, but the key points in that presentation (plus a couple of added examples based
Highlights • Coral reefs exhibit natural, diel pCO2 fluctuations that are expected to increase. • Few studies have examined effects of fluctuating pCO2 on adult coral reef fishes. • We measured swimming, O2 uptake rates, aerobic scope, and various blood parameters. • Performing under fluctuating pCO2 conditions may be less energetically-costly. • Studies should use
Paper ReviewedForbes, S.J., Cernusak, L.A., Northfield, T.D., Gleadow, R.M., Lambert, S. and Cheesman, A.W. 2020. Elevated temperature and carbon dioxide alter resource allocation to growth, storage and defense in cassava (Manihot esculenta). Environmental and Experimental Botany 173: 103997. Cassava (Manihot esculenta) is an important food crop known for its edible roots. According to Forbes et al. (2020), it
By Jan Hendrik Bredehöft* Water, carbon monoxide and carbon dioxide are the most abundant molecules in the condensed phase of interstellar dust grains. Water is formed by hydrogenation of oxygen species adsorbed on the surface of dust grains, while carbon monoxide is formed by reactions between ionized carbon and hydroxyl species in the gas phase.
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