The Climate Change Challenge and Barriers to the Exercise of Foresight Intelligence

by Ellen Broaddus

In Ross et al. (2016), experts from various academic fields assess some of the barriers that aid today’s denial and inaction combating climate change, even with overwhelming evidence from the scientific community. This hesitancy is traced back to a combination of cognitive shortcomings and the difficulty to work collectively on an issue so complex and seemingly indirect. However, the authors provide examples of strategies used to combat said inaction and their efficacy.    Continue reading

Temperature Drives the Continental-Scale Distribution of Key Microbes in Topsoil Communities

by Elizabeth Medford

While it has become fairly well known that global warming will cause plant and animal species to migrate toward cooler areas or cause range loses, until now it has been unclear whether this will also be true for microorganisms. Microorganisms play a key role in soil fertility and erodibility making this study relevant both for future agricultural endeavors as well as future efforts relating to ecological protection. Garcia-Pitchel et al. (2013) conducted continental-scale compositional surveys of soil crust microbial communities in the arid regions of North America. The results from these surveys imply that temperature caused latitudinal replacement between two key topsoil cyanobacteria. The cyanobacteria Microcoleus vaginatus behaved more psychrotolerant and less thermotolerant while M. steenstrupii behaved more thermotolerant. These results imply that the later may replace the former as temperature increases globally. Further studies are required to fully understand the impact of this microbial replacement. Continue reading