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Reference Terms
from Wikipedia, the free encyclopedia

Pollution

Pollution is the introduction of harmful substances or energy into the environment, resulting in negative effects on ecosystems, human health, and natural resources. It can occur in many forms, including air pollution from vehicle emissions and industrial activity, water pollution from chemicals and waste, soil contamination, noise pollution, and light pollution. These pollutants may be chemical, physical, or biological in nature and often originate from human activities.

Air pollution, for example, can lead to respiratory problems, cardiovascular disease, and climate change through the accumulation of greenhouse gases. Water pollution can harm aquatic life and contaminate drinking water, while soil pollution affects food safety and agricultural productivity. Pollutants can travel far from their source, impacting environments and communities on a global scale.

Efforts to reduce pollution involve regulations, clean technologies, waste management, and public awareness. Addressing pollution is critical for protecting biodiversity, maintaining ecosystem health, and ensuring the well-being of current and future generations.

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Earth & Climate News

September 16, 2026

Scientists have developed a solar-powered desalination system that turns seawater into fresh water while removing nearly all of the leftover salt as a solid instead of producing harmful brine. The self-cleaning technology could also recover valuable ...
U.S. irrigation produces some greenhouse gas emissions, but new research suggests it prevents vastly more by allowing farmers to grow more food on less land. Without irrigation, replacing lost crop yields could require converting natural ecosystems ...
The Hunga Tonga eruption may have triggered a surprising chemical reaction that destroyed some of the methane released into the atmosphere. Scientists say the discovery could reshape estimates of methane pollution and inspire new methods for slowing ...
More than 60 years after surveys suggested a deep coral reef off Benin was probably dead, scientists have found it alive. Cameras revealed healthy-looking coral patches supporting multiple fish species more than 50 meters beneath the surface. The ...
A World War I submarine wreck off Denmark is leaking TNT into the surrounding water, seabed, and marine life more than a century after it sank. Scientists warn that thousands of similar wrecks could pose growing environmental risks as they continue ...
Mount Etna’s ancient eruptions followed radically different paths, with some magma lingering near the surface for weeks while other magma raced upward from nearly 30 kilometers deep in just hours. Scientists traced the difference to volcanic gases ...
Scientists have found that Arctic cyclones become especially destructive when several strike one after another. These storm clusters cause about twice as much sea ice loss as isolated cyclones, with impacts that persist roughly two and a half times ...
The Indian and Pacific oceans have been climatically linked for centuries, but scientists say that connection is now breaking down in an exceptional way. Ancient climate records suggest volcanoes disrupted the relationship in the past, while today ...
Ancient rocks from Western Australia suggest water was reaching deep inside Earth more than three billion years ago, long before modern plate tectonics may have fully developed. Researchers propose that water-rich pieces of crust periodically sank ...
Britain’s wasps have become mysteriously scarce this summer, and scientists suspect an unusual combination of temperature swings, heatwaves, and food shortages may be responsible. Even the wasps that remain appear unusually small, potentially ...
The Mediterranean may seem far removed from the world’s major tsunami zones, but history and modern modeling show that destructive waves can strike the French Riviera with surprisingly little warning. Some tsunamis could reach shore in under 10 ...
East Antarctica gained an astonishing 695 billion tons of ice between 2021 and 2023, temporarily slowing Antarctica’s long-term decline. Researchers found that warming thousands of miles away in ...

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