A new paper revealed that human activities are making Earth's air, soil and freshwater saltier, which could pose an 'existential threat' if current trends continue. Geologic and hydrologic processes bring salts to Earth's surface over time, but human activities such as mining and land development are rapidly accelerating this natural 'salt cycle.
Human activities such as marsh draining for agriculture are increasingly eating away at saltwater and freshwater wetlands that cover only 1% of Earth's surface but store more than 20% of all ...
Current water quality guidelines aren't protecting freshwater ecosystems from increasing salt pollution due to road de-icing salts, agriculture fertilizers, and mining operations, according to ... Using the most comprehensive dataset on the 'human footprint,' which maps the accumulated impact of human activities on the land's surface, researchers found intense human pressures ...
Local stakeholders need more information than is currently available to them on the impacts of former mining activities on ground water and surface water, potential soil contamination, and the safety ...Bizarre New Fossils Shed Light on Ancient Plankton
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