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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

April 28, 2026

A new study suggests Neanderthals didn’t go extinct simply because of climate change or competition with Homo sapiens. Instead, the key difference may have been social connectivity—Homo sapiens formed stronger, more flexible networks that helped ...
The mysterious collapse of the Maya civilization may not have been driven solely by drought after all. New evidence from lake sediments in Guatemala reveals that one key city, Itzan, enjoyed a stable climate even as its population abruptly vanished. ...
A mysterious “golden orb” found more than two miles deep in the Gulf of Alaska left scientists baffled for over two years, sparking wild speculation about its origins. After an intensive ...
A major new study finds that living in pesticide-heavy environments could raise cancer risk by up to 150%, even when the chemicals are considered “safe” on their own. The research suggests these mixtures may silently damage cells years before ...
For decades, the Gulf of Panama has relied on strong seasonal winds to trigger upwelling, bringing cool, nutrient-packed water to the surface. But in 2025, this dependable event didn’t happen. Researchers point to unusually weak winds as the ...
As Alaska’s rivers warm, invasive northern pike are becoming noticeably more voracious. Scientists discovered that pike of all ages are eating more fish, with young pike increasing consumption by over 60%. Warmer water speeds up their metabolism, ...
For ages, wall lizards coexisted in three distinct color types, each with its own strategy for survival. Now, a powerful green variant is taking over. These dominant “Hulk” lizards are outcompeting the others, causing yellow and orange morphs to ...
Beneath East Africa’s Turkana Rift, scientists have found the crust is thinning to a critical point, suggesting the continent is gradually breaking apart. This “necking” process marks an ...
The golden oyster mushroom may be a culinary hit, but it’s becoming an ecological problem. Scientists warn it’s spreading quickly through U.S. forests, where it outcompetes native fungi and reduces biodiversity. In just a decade, it has appeared ...
Microplastics are floating through the atmosphere and spreading across the globe, but their true origins have been misunderstood. New research shows land sources emit over 20 times more microplastic particles into the air than the ocean, challenging ...
Ancient Antarctic ice is revealing a surprising new chapter in Earth’s climate story, stretching back 3 million years. By analyzing tiny pockets of trapped air and rare gases, scientists have discovered that while the planet cooled ...
Beneath the dry farmland of New South Wales lies a hidden window into a lost rainforest teeming with life from 11-16 million years ago. At McGraths Flat, scientists have uncovered fossils preserved in astonishing detail—not in typical rock like ...

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