260 Microplastics detected in European and Arctic snow, highlighting the importance of atmospheric transport as a pathway.
https://advances.sciencemag.org/content/5/8/eaax1157
259 Microplastics in ocean sediments increased exponentially from 1945 to 2009, serving as a geological proxy for the Anthropocene.
https://advances.sciencemag.org/content/5/9/eaax0587
258 Snowglow—The Amplification of Skyglow by Snow and Clouds Can Exceed Full Moon Illuminance in Suburban Areas.
https://www.mdpi.com/2313-433X/5/8/69
257 Wildfires can inject large quantities of smoke into the stratosphere.
https://science.sciencemag.org/content/365/6453/587
256 The Carbon Footprint of Bitcoin.
https://www.cell.com/joule/fulltext/S2542-4351(19)30255-7
255 Earth system models could allow useful ecosystem predictions to be made as much as several years in advance.
https://science.sciencemag.org/content/365/6450/284
254 Biological composition and microbial dynamics of sinking particulate organic matter at abyssal depths in the oligotrophic open ocean.
https://www.pnas.org/content/116/24/11824
253 Increase in CFC-11 emissions from eastern China based on atmospheric observations.
https://www.nature.com/articles/s41586-019-1193-4
252 Economic resilience of Carthage during the Punic Wars: Insights from sediments of the Medjerda delta around Utica (Tunisia).
https://www.pnas.org/content/116/20/9764
251 Mapping the world’s free-flowing rivers.
https://www.nature.com/articles/s41586-019-1111-9
250 Comparisons across terrestrial and marine ectotherms reveal that marine species experience temperatures closer to their upper thermal limits, and that local extirpations related to warming are more common in the ocean.
https://www.nature.com/articles/s41586-019-1132-4
249 Dating glacier ice of the last millennium by quantum technology.
https://www.pnas.org/content/116/18/8781
248 Global forecasts of shipping traffic and biological invasions to 2050.
https://www.nature.com/articles/s41893-019-0245-y
247 Limits to the world’s green water resources for food, feed, fiber, timber, and bioenergy.
https://www.pnas.org/content/116/11/4893
246 Redox and pH gradients drive amino acid synthesis in iron oxyhydroxide mineral systems.
https://www.pnas.org/content/116/11/4828
245 Room temperature CO2 reduction to solid carbon species on liquid metals featuring atomically thin ceria interfaces.
https://www.nature.com/articles/s41467-019-08824-8
244 Global-scale dispersal and connectivity in mangroves.
https://www.pnas.org/content/116/3/915
243 Geomorphic evolution of a gravel‐bed river under sediment‐starved vs. sediment‐rich conditions: River response to the world's largest dam removal.
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018JF004703
242 A large impact crater beneath Hiawatha Glacier in northwest Greenland.
http://advances.sciencemag.org/content/4/11/eaar8173
241 Satellite observations reveal over 200 ammonia hotspots associated with agricultural and industrial point sources, which emit much larger quantities of ammonia to the atmosphere than previously thought.
https://www.nature.com/articles/s41586-018-0747-1
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