A new Gulf oil spill, opposition to deep-sea mining, DIY drop cameras, and more! Massive Monday Morning Salvage: October 30, 2017

I’ve been away for 2 weeks, so it’s a super-massive edition of the Monday Morning Salvage!

Fog Horn (A Call to Action)

Flotsam (what we’re obsessed with right now)

Sampling SMS under the sea Photo: Nautilus Minerals

Jetsam (what we’re enjoying from around the web)

Hey, Andrew, how about you give us at least *some* good news today? Ok, fine.

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This Week in the Deep

New and noteworthy publications in deep-sea science for the week of January 21, 2013.

Geobiology: Did life originate from a global chemical reactor?

Many decades of experimental and theoretical research on the origin of life have yielded important discoveries regarding the chemical and physical conditions under which organic compounds can be synthesized and polymerized. However, such conditions often seem mutually exclusive, because they are rarely encountered in a single environmental setting. As such, no convincing models explain how living cells formed from abiotic constituents. Here, we propose a new approach that considers the origin of life within the global context of the Hadean Earth. We review previous ideas and synthesize them in four central hypotheses: (i) Multiple microenvironments contributed to the building blocks of life, and these niches were not necessarily inhabitable by the first organisms; (ii) Mineral catalysts were the backbone of prebiotic reaction networks that led to modern metabolism; (iii) Multiple local and global transport processes were essential for linking reactions occurring in separate locations; (iv) Global diversity and local selection of reactants and products provided mechanisms for the generation of most of the diverse building blocks necessary for life. We conclude that no single environmental setting can offer enough chemical and physical diversity for life to originate. Instead, any plausible model for the origin of life must acknowledge the geological complexity and diversity of the Hadean Earth. Future research may therefore benefit from identifying further linkages between organic precursors, minerals, and fluids in various environmental contexts.

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