Dr. Bryan N. Duncan is a deputy project scientist for the Aura Mission at NASA's Goddard Space Flight Center in Greenbelt, Maryland.



He recently presented the story of air quality in three cities: Beijing, Los Angeles...

Understand the graph of a proportional relationship.

In this second lesson, we’ll venture deeper into visual techniques. Take a closer look at the nitty-gritty of images and how composers arrange visual elements to create certain effects. Build your confidence with important techniques...

MOT 1948: EUROPE'S POST WAR RECOVERY - montage, people standing in line at stores, coal mining - man swinging pick axe at coal, power plant, man selling to woman on black market, olive grove - women picking olives off the ground.

This video discusses the use of non-renewable resources, specifically fossil fuels, as a major source of commercial energy on Earth. It highlights the significant contribution of coal, crude oil, and natural gas to energy production, but...

Coal. The carbon based result of water, rocks and dirt compressing plant life for millions of years. Cavemen used coal for heat, light and cooking. The earliest coal mines were discovered in China, dating back over 3000 years. The use of...

MOT 1948: VILLA HUGEL: WS Car pulling up in front of villa occupied headquarters for US/UK Coal Control Group in Germany. MS No Visitors sign also info sign below. INT Villa VS Men at table in meeting Ruhr coal production growth chart.

We just cruised through the Hadean, Archean, and Proterozoic eons. That brings us all the way to the Phanerozoic eon, which is the one we are still living in today. This is split up into the Paleozoic, Mesozoic, and Cenozoic eras, so...

This video highlights the water-intensive nature of textile mills globally, particularly in Bangladesh. It discusses the significant amount of water consumed by these mills and the resulting pollution of the Ganges river. It also...

Global warming is something that threatens to impact us all: both environmentally (with the loss of natural marvels such as the great barrier reef) and economically.



But humans aren't actually contributing as...

MOT 1946: BRITISH ZONE, GERMANY: RUHR DISTRICT: HA WS Krupp steel factory w/ smokestacks smoking. Railroad coal cars in factory yard. Worker pushing ladle of molten metal, workers helping pour hot metal into mold. Post WWI war...

After the American Civil War, the American South attempted a rebrand. But would it accept the progressive social and political changes of the Reconstruction Era?

It explains fossil fuels, namely coal, petroleum and natural gas. It also talks about the choice of good fuel.

MOT 1935: BOOTLEG MINING OPERATIONS: Miners (Bootleggers) working closed mines using handmade equipment shutes wooden box mine car being lowered by rope attached to rear tire car men & children loading coal.

MOT 1947: BRITAIN SNOW: CU Newspaper 'Trains buried in snow towns isolated.' WS English man shoveling snow. HA WS Frozen canal w/ barges countryside. MS Barges. WS Buried coal carts. WS Covered coal pile train pulling away. Winter cold...

MOT 1946: RUHR FACTORIES: WS Ruhr Valley, Germany. WS Coal mining factory, trains. CU Train side 'Deutsche reichsbahn.' CU Train w/ coal. MS Steel mill, smoke stacks. INT Bessemer, flames. MS Steel workers shielding eyes. MS Molten steel...

Coal. The carbon based result of water, rocks and dirt compressing plant life for millions of years. Cavemen used coal for heat, light and cooking. The earliest coal mines were discovered in China, dating back over 3000 years. The use of...

2017 might have seemed like a bad year in so many ways. From Trump to yet more elections in the UK. Or the mess that is Brexit. But it's not all bad news. Some great things did happen in 2017. Here are some good news stories you might...

Watch part 2 of the videos on the Carbon Cycle, as a part of environmental chemistry. Photosynthesis and respiration help carbon to be cycled in nature by using energy from the sun. As living things grow, they have to build up large...

Ten years after climate movie The Age of Stupid had its green-carpet, solar-powered premiere, we follow its director as she revisits people and places from the film and asks: are we still heading for the catastrophic future it depicted?

How to save the world, by counting to zero: the Guardian's Phoebe Weston breaks down all the climate jargon we have been hearing in the run-up to Cop26, the make-or-break climate summit starting on Sunday, and explains what we – and most...

With the recent record high gas prices across the world, countries have had to look to other sources of power to supply their energy. So in this video, we look at why more Nuclear Power could be Britain's answer to the energy crisis...

This video highlights the story of a floating farmer in Bangladesh who has adapted to the challenges of climate change by growing food on water. The floating farms not only provide food security but also contribute to agricultural...

Discusses why divesting is a financially beneficial decision and who else is gaining value from divesting