Over his decades of farming and ranching, Gabe Brown has noticed a troubling trend: the conventional farming techniques he used were degrading the soil and harming nature. He shares how his family farm turned things around by adopting...

The first pairs of jeans were designed for durability; denim was constructed as a sturdy weave worn by sailors and miners. But over the course of the 20th century, as the demand for jeans has gone up, their durability has gone down....

Where did Zika come from, and what can we do about it? Molecular biologist Nina Fedoroff takes us around the world to understand Zika's origins and how it spread, proposing a controversial way to stop the virus -- and other deadly...

Break down the oil slick, keep it off the shores: that's grounds for pumping toxic dispersant into the Gulf, say clean-up overseers. Susan Shaw shows evidence it's sparing some beaches only at devastating cost to the health of the deep sea.

The old combined sewer systems of many major cities are no match for modern storms and impermeable surfaces.

The vital links between a healthy society and a sustainable environment.

Howcast - Don't call a pricey plumber! Anyone with a few tools can unclog a drain -- without even resorting to those strong, toxic chemicals. Most of the time, anyway.

A white blood cell that helps protect the body by engulfing and absorbing harmful bacteria, dead or dying cells, waste material, or other foreign bodies in the bloodstream and tissues.
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A Twig Science
Glossary...

We look at how chemical filtration can be used to remove contaminants from water. Potassium permanganate is used as the contaminant. First, we try to remove it using physical filtration, with filter paper and a funnel. This does not...

Delve into the complexities of cobalt mining in the Democratic Republic of the Congo (DRC), where industrial and artisanal mining intersect. Learn about the environmental damage, displacement of communities, and health risks associated...

Dr. Forrester explains different types of pollution: water, air, and noise.

Explore the causes of plastic pollution in our oceans, driven by ocean currents and gyres. Learn about the staggering scale of the Great Pacific Garbage Patch and the proliferation of microplastics. Understand the environmental and...

We explain what you need to know about how biodiversity suffers as a result of human activity.

Hydraulic Fracturing explains what hydraulic fracturing is and why it is a highly controversial process by explaining the advantages and disadvantages of fracking.

This video discusses the significant sources of pollution in our oceans, focusing on the impact of chemical waste and plastic pollution. It highlights the consequences of pollution on marine life, human health, and the environment. The...

Toxic chemical polychlorinated biphenyls, or PCBs, were found lingering in marine life such as killer whales, according to a new study published in the journal Science.

Certain types of dental floss may increase the amount of toxic chemicals present in the body, according to a new study published in the Journal of Exposure Science & Environmental Epidemiology.

Conventional pesticides are a double-edged sword that scientists are now seeking to replace with more natural RNA-based plant vaccines. The U.S. Department of Agriculture estimates that without pesticides, roughly 70 percent of the...

This live-action video program is about bioaccumulation. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and colorful, animated...

The Syrian government denies carrying out a deadly chemical attack in the northeastern province of Idlib on Tuesday, but the World Health Organization says otherwise

The agency says it does not appear that the barrels have leaked.

A scientist who resigned from Canada's pesticide regulator says the agency may be allowing unsafe levels of chemicals into the food supply.

3 Chemical Companies Agree to $1B Settlement Over Contaminated Water Supplies

Experts compare the way Beirut’s port is managed with how the state is run.