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Updated: 3 hours 44 min ago

Woolly star plants need catastrophes to live

Tue, 19/03/2019 - 18:51
The endangered Santa Ana Woolly Star depends on catastrophic floods. Thanks to a huge dam, natural floods are now nonexistent in its home turf. Researchers use different soil treatments mimicking flood effects in its preferred habitat, exploring the effectiveness of each towards plant survival.

Getting to the core of underwater soil

Wed, 27/02/2019 - 14:15
Soils all over the Earth's surface are rigorously tested and managed. But what about soils that are down in the murky depths? Some scientists are working to get them the recognition and research they deserve.

More extreme coastal weather events likely to increase bluff erosion, landslide activity

Tue, 26/02/2019 - 22:54
Unstable slopes on Oregon's coastline could see a 30 percent jump in landslide movements if extreme storms become frequent enough to increase seacliff erosion by 10 percent, a new study shows.

Landslides triggered by Hurricane Maria

Thu, 07/02/2019 - 16:26
Hurricane Maria hit the island of Puerto Rico on 20 September 2017 and triggered more than 40,000 landslides in at least three-fourths of Puerto Rico's 78 municipalities. Researchers write that 'the number of landslides that occurred during this event was two orders of magnitude greater than those reported from previous hurricanes.'

Seas may be rising faster than thought

Wed, 30/01/2019 - 19:42
A new study questions the reliability of how sea-level rise in low-lying coastal areas such as southern Louisiana is measured and suggests that the current method underestimates the severity of the problem.

Loss of intertidal ecosystem exposes coastal communities

Wed, 19/12/2018 - 19:32
Artificial intelligence and extensive satellite imagery have allowed researchers to map the world's intertidal zones for the first time, revealing a significant loss of the crucial ecosystem. The study has shown that global foreshore environments declined by up to 16 percent between 1984 and 2016.

Hypoxic dead zones found in urban streams, not just at the coast

Tue, 11/12/2018 - 20:46
A new study finds that hypoxic dead zones occur in nutrient-laden urban streams, not just in coastal waters. The research shows that intense storm flows can erode some stream channels to become a series of pools that trap nutrient-laden runoff. The elevated nutrient levels in the water spur greater consumption of dissolved oxygen by bacteria, causing the pools to become hypoxic until the next storm flushes them out.