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from Wikipedia, the free encyclopedia

Humus

Humus is a complex organic substance resulting from the breakdown of plant material in a process called humification. This process can occur naturally in soil, or in the production of compost. Humus is extremely important to the fertility of soils in both a physical and chemical sense.

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Earth & Climate News

June 2, 2026

A massive global analysis found that nitrogen pollution can either speed up or dramatically slow the natural "breathing" of forest soils, depending on the ecosystem's condition. The results reveal hidden tipping points that could affect how forests ...
Scientists are venturing into the Grand Canyon’s hidden cave networks to solve a mystery: how snowmelt travels underground to supply the park’s vital springs. Their discoveries could help protect the canyon’s water from drought, contamination, ...
A breakthrough hydrogen-production method could make clean fuel far cheaper and easier to generate. Researchers at the University of Birmingham developed a perovskite-based catalyst that splits water into hydrogen at much lower temperatures than ...
Kitchen sponges release microplastics as they wear down during everyday use, with some sponge types shedding far more than others. Researchers estimated that millions of households could collectively release hundreds of tons of microplastics ...
A world-famous conservation program that helped save Sweden’s endangered wolverines is now struggling as funding stagnates and local trust erodes. Researchers say the decline offers a cautionary lesson: protecting wildlife requires long-term ...
Scientists have developed a solar desalination system that turns seawater into drinking water without creating environmentally damaging brine. Special laser-textured metal panels use sunlight to evaporate water while automatically moving salt ...
A surprising new discovery suggests that tiny microbes living inside fish may be helping shape the chemistry of the world’s oceans. Scientists found evidence that bacteria in the guts of marine fish work alongside their hosts to produce calcium ...
A new study suggests Antarctica’s ice sheet hit a climate tipping point about one million years ago, making it far more reactive to temperature and CO2 changes. Researchers warn this surprising sensitivity could offer clues about how the continent ...
The Arctic Ocean may have crossed a dangerous tipping point. Scientists say the rapid disappearance of sea ice is triggering a hidden chemical shift that is stripping the ocean of nitrate — a nutrient essential for the tiny plankton that support ...
A casual walk through an Ithaca cemetery led to the discovery of a gigantic hidden bee population — roughly 5.5 million ground-nesting bees packed beneath the soil. Scientists believe it may be one of the largest bee aggregations ever documented ...
New research suggests Earth’s climate can swing wildly on surprisingly short timescales — even during hot, ice-free greenhouse periods. By studying ancient sediments from the Late Cretaceous, ...
Humanity may already be living far beyond what Earth can sustainably support, according to a sweeping new study analyzing more than 200 years of population and environmental data. Researchers found that while population growth once fueled innovation ...

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