Molecule traps carbon dioxide in leaf tissue

By Margaret Evans Scientists at the Australian National University in Canberra along with international partners have discovered that the molecule suberin forms a tight layer that keeps carbon dioxide inside a layer of cells called the bundle sheath, and that can improve photosynthesis. Florence Danila with the ARC Centre of Excellence for Translational Photosynthesis at 

Continue Reading…

Mountain Growth Influences Greenhouse Effect – Weathering of Rocks Can Bind or Release Carbon Dioxide

Weathering of rocks can bind or release carbon dioxide — in active mountain ranges, carbon-dioxide release strongly dominates. Taiwan is an island of extremes: severe earthquakes and typhoons repeatedly strike the region and change the landscape, sometimes catastrophically. This makes Taiwan a fantastic laboratory for geosciences. Erosion processes, for example, occur up to a thousand 

Continue Reading…

Ocean bacteria release carbon into the atmosphere

A team led by University of Minnesota researchers has discovered that deep-sea bacteria dissolve carbon-containing rocks, releasing excess carbon into the ocean and atmosphere. The findings will allow scientists to better estimate the amount of carbon dioxide in Earth’s atmosphere, a main driver of global warming. The study is published in The ISME Journal: Multidisciplinary 

Continue Reading…

The Response of Sorghum to Elevated CO2, Water Stress and Nitrogen Availability

Paper Reviewed Asadi, M. and Eshghizadeh, H.R. 2021. Response of sorghum genotypes to water deficit stress under different CO2 and nitrogen levels. Plant Physiology and Biochemistry 158: 255-264. Sorghum is a C4 crop mainly grown in water-limited regions given its relatively high tolerance to drought. And although much is known about the response of this 

Continue Reading…

Current Climate Model Simulations Significantly Overestimate Future Sea-Level Rise

The melting rate of the Antarctic ice sheet is mainly controlled by the increase of ocean temperatures surrounding Antarctica. Using a new, higher-resolution climate model simulation, scientists from Utrecht University found a much slower ocean temperature increase compared to current simulations with a coarser resolution. Consequently, the projected sea-level rise in 100 years is about 

Continue Reading…

Interactive Effects of Warming and Elevated CO2 on a Tropical Forage Species

Paper ReviewedAlzate-Marin, A.L., Rivas, P.M.S, Galaschi-Teixeira, J.S., Bonifácio-Anacleto, F., Silva, C.C., Schuster, I., Nazareno, A.G., Giuliatti, S., da Rocha Filho, L.C., Garófalo, C.A. and Martinez, C.A. 2021. Warming and elevated CO2 induces changes in the reproductive dynamics of a tropical plant species. Science of the Total Environment 768: 144899, doi.org/10.1016/j.scitotenv.2020.144899. In a prior study (Habermann et al., 2019) it 

Continue Reading…

New Approach to Forecast Sea-Level Changes in Coastal Regions of the World

At the Image Processing Laboratory (IPL) of the University of Valencia, scientists have designed a machine learning method to model and forecast brief sea-level variations in the coastal regions of the Atlantic, Indian and Pacific oceans. The study was particularly beneficial for coastal protection, and it has been published in the journal Nature Scientific Reports. Over 

Continue Reading…

Increasing aridity will not offset CO2 fertilization in fast-growing eucalypts with access to deep soil water.

By D. Nadal-Sala et al. Abstract Rising atmospheric [CO2] (Ca) generally enhances tree growth if nutrients are not limiting. However, reduced water availability and elevated evaporative demand may offset such fertilization. Trees with access to deep soil water may be able to mitigate such stresses and respond more positively to Ca. Here, we sought to 

Continue Reading…