DNR weekend reading: How seeds know when to sprout after a wildfire

Long Beach cloud formation
Enroute to Willapa Spits at the tip of the Long Beach Peninsula to collect razor clams for neurotoxin testing for the upcoming commercial razor clam harvest, a DNR Aquatic Resources crew spotted this unusual cloud formation. Photo: Andrea Hegland/DNR.

Salk Institute: Smoke signals: How burning plants tell seeds to rise from the ashes
In the spring following a forest fire, trees that survived the blaze explode in new growth and plants sprout in abundance from the scorched earth. Now, scientists have a new understanding of the molecular trigger that causes seeds, some long dormant, to push through the ashes to regenerate the burned forest.

Science Daily: Lava Erupting On Sea Floor Linked to Deep-Carbon Cycle
Scientists have found unsuspected linkages between the oxidation state of iron in volcanic rocks and variations in the chemistry of the deep Earth. Not only do the trends run counter to predictions from recent decades of study, they belie a role for carbon circulating in the deep Earth.

  Alpha Galileo Foundation: How to Clean Seaweed from Beaches: Dry It and Use the Biomass for Energy
Scientists have developed an algae removal and treatment system that turns this underused residue into a renewable source of energy: biomass. The process involves several stages of washing, drying and compacting without leaving the beach. The system is cheaper, more efficient and more environmentally friendly than the procedure commonly followed now.

University of Granada: Lake Found in Sierra Nevada With the Oldest Remains of Atmospheric Contamination in Southern Europe
Scientists found, in the Laguna de Rio Seco lagoon, at an altitude of 3,020 m., evidence of atmospheric pollution caused by lead and linked to metallurgical activities from 3,900 years ago (Early Bronze Age). Lead pollution increased gradually during the Late Bronze Age and Early Iron Age, coinciding with the development and expansion of metallurgy in southern Europe.

Treehugger.com: Oslo runs out of garbage, imports it from rest of the world
Oslo (like many other cities in Scandinavia and Northern Europe) has built cogeneration plants that produce heat and electricity from garbage — enough to heat about half of the city. But the locals don’t produce enough garbage so they are importing trash to burn for power.

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