Jörg Steinkamp

TL;DR: In this article, photoautotrophic communities, which are capable of synthesizing their own food from inorganic substances using sunlight, were analyzed and found to account for nearly half of the biological nitrogen fixation on land.

TL;DR: In this paper, the authors reflect on the current understanding of forest resilience and potential tipping points under environmental change and explore challenges to assessing responses using experiments, observations and models. But it is often unclear whether these changes reduce resilience or represent a tipping point.

TL;DR: A majority of models underestimate the extremeness of impacts in important sectors such as agriculture, terrestrial ecosystems, and heat-related human mortality, while impacts on water resources and hydropower are overestimated in some river basins; and the spread across models is often large.

TL;DR: In this paper, the tradeoffs between the regional buildup of pollutants near their sources versus long-range export depend on meteorological characteristics which vary as a function of geographical location and season, and the overall degree of export is strongly governed by the lifetimes of pollutants.

TL;DR: It is shown that biological soil crusts (biocrusts) are emitters of nitric oxide (NO) and nitrous acid (HONO), and their impacts should be further quantified and included in regional and global models of air chemistry, biogeochemistry, and climate.