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Yeast volatiles double starvation survival in Drosophila .

A modeling framework for citywide solar microgrids with real hourly consumption, and the interplay between spatial costs and resilience.

We present an experimental study of a fundamental case where gas mixture models fail: shock propagation through a gas mixture.

The “Global Safety Net” shows where nature could be conserved and connected to reverse biodiversity loss and stabilize climate.

Biological nitrogen fixation is a fundamental part of ecosystem functioning. Anthropogenic nitrogen deposition and climate change may, however, limit the competitive advantage of nitrogen-fixing plants, leading to reduced relative diversity of nitrogen-fixing plants. Yet, assessments of changes of nitrogen-fixing plant long-term community diversity are rare. Here, we examine temporal trends in the diversity of nitrogen-fixing plants and their relationships with anthropogenic nitrogen deposition while accounting for changes in temperature and aridity. We used forest-floor vegetation resurveys of temperate forests in Europe and the United States spanning multiple decades. Nitrogen-fixer richness declined as nitrogen deposition increased over time but did not respond to changes in climate. Phylogenetic diversity also declined, as distinct lineages of N-fixers were lost between surveys, but the “winners” and “losers” among nitrogen-fixing lineages varied among study sites, suggesting that losses are context dependent. Anthropogenic nitrogen deposition reduces nitrogen-fixing plant diversity in ways that may strongly affect natural nitrogen fixation.

We review recent advances, limitations, and prospects of solar-thermal desalination for sustainable, low-cost water production.