Main messages of the UN World Water Development Report 2020, Water and Climate Change

INSIGHTS ON PBS HAWAII – Is 100% Renewable Energy Attainable?

>>MAHEALANI: COMING UP NEXT ON INSIGHTS ON PBS HAWAI’I, IS A 100% RENEWABLE ENERGY GOAL ATTAINABLE?>>MAHEALANI: ALOHA AND WELCOME TO INSIGHTS ON PBS HAWAII. I’M MAHEALANI RICHARDSON. HAWAI’I RELIES ON IMPORTED OIL, GAS, AND COAL FOR 80% OF OUR ENERGY NEEDS MAKING US THE MOST FOSSIL-FUEL-RELIANT STATE IN THE NATION. ON MONDAY, THE GOVERNOR WILL […]

Graphene ‘Wonder Material’ Can Now Be Made Using TRASH

Graphene is cool stuff. The single-atom thick layer of carbon has a number of properties that make it almost endlessly useful. Because of all the neat tricks it can do, it’s popularly dubbed a “wonder material,” but over a decade and a half after it was first isolated, the only thing I’m wondering is: where […]

Trash to graphene in a flash – Better buildings through bananas

Say it with me now — banana peels build buildings! Chemists have discovered a way to convert just about any carbon source, including food waste, coal and plastic, into graphene — the strongest material known. Ten milliseconds later you’ve got a material that can be used to strengthen concrete, reduce manufacturing cost and decrease environmental […]

3 Minutes On… Electric Lights

Last time we talked about microphones, and how, as transducers, they converted sound energy into electrical energy. Well, electric lights are also, technically speaking, another kind of transducer. They just go in the other direction, converting electrical energy into light. Before the adoption of electric lighting in the late 1800s, we made due with whatever […]

How Gasification Turns Waste Into Energy

Our society produces a lot of waste. Over 2 billion tons per year, in fact. A number that’s expected to grow by 70 percent by 2050. That’s a line of garbage trucks stretching from San Francisco to New York City every single day. Organic materials in landfills decompose. They produce methane, a very potent greenhouse […]

Climate change: Earth’s giant game of Tetris – Joss Fong

To understand climate change, think of the game “Tetris.” For eons, Earth has played a version of this game with blocks of carbon. They enter the atmosphere as carbon dioxide gas from volcanoes, decaying plant matter, breathing creatures and the surface of the sea. And they leave the atmosphere when they’re used by plants during […]

The Hydrologic and Carbon Cycles: Always Recycle! – Crash Course Ecology #8

Adorable story alert! So I was hanging out with my 2-year-old second cousin in the ocean in Florida and we’re jumping up and down with the waves and it’s fun but then the water got all calm and I said, “Oh, no more waves!,” because, like, that’s the top tier of communication I’m going for […]

Will Climate Change Stop If We Stop Emitting Carbon Tomorrow? | Hot Mess 🌎

Imagine that aliens landed and gifted us a clean, limitless energy source. And instead of killing each other over this technology, we decided to immediately transform the world into a carbon-free society. [animation shows closing drilling rigs, oil refineries, and coal and natural gas plants.] This wonderous source would power our homes, industries, cars and […]