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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 8, 2026

Oyster reefs aren’t random piles—they’re carefully shaped survival systems. Researchers discovered that certain geometric patterns, not just bigger or more complex structures, give young oysters the best chance to thrive. By mimicking these ...
A sweeping new study reveals that as Arctic permafrost thaws, it is dramatically reshaping rivers and releasing vast amounts of ancient carbon that had been locked away for thousands of years. By analyzing decades of high-resolution data across ...
Warming across the U.S. is far more uneven than it looks at first glance. While only about half of states show rising average temperatures, most are heating up in specific ways—like hotter highs or warmer lows. These hidden shifts vary by region, ...
Old canned salmon turned out to be a time capsule of ocean health. Researchers found that rising levels of tiny parasitic worms in some salmon species suggest stronger, more complete marine food ...
Scientists may have been unknowingly inflating microplastics pollution estimates, and the surprising source could be their own lab gloves. A University of Michigan study found that common nitrile and latex gloves release tiny particles called ...
Scientists have discovered that the ocean’s “missing” plastic hasn’t vanished—it has broken down into trillions of invisible nanoplastics now spread through water, air, and living ...
Scientists have created a new kind of carbon material that could make carbon capture much cheaper and more efficient. By carefully controlling how nitrogen atoms are arranged, they found certain structures capture CO2 better and release it using far ...
A massive 7.7 magnitude earthquake struck Myanmar in March 2025, but what makes this event extraordinary is what happened next. For the first time, a nearby CCTV camera captured the fault rupture in ...
Stable sea ice along Alaska’s coast is disappearing faster than expected, with the season shrinking by weeks and even months in recent decades. The ice is forming later in the fall and, in some places, breaking away earlier in spring. This trend ...
A sweeping global report finds that migratory freshwater fish are in steep decline, with populations down roughly 81% since 1970. These species depend on long, connected rivers, but dams and human pressures are cutting off their routes. Hundreds of ...
When temperatures plunge, the risk to your heart rises dramatically. A large U.S. study shows cold weather is linked to far more cardiovascular deaths than heat, accounting for tens of thousands of extra deaths each year. Scientists found the safest ...
People often get the environmental impact of food wrong, according to new research. While many assume processed foods are the worst, they tend to overlook the surprisingly high impact of items like nuts and underestimate how damaging beef really is. ...

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