Tag «solar»

How do solar panels work? – Richard Komp

How do solar panels work? – Richard Komp

The Earth intercepts a lot of solar power: 173 thousand terawatts. That’s ten thousand times more power than the planet’s population uses. So is it possible that one day the world could be completely reliant on solar energy? To answer that question, we first need to examine how solar panels convert solar energy to electrical …

EPA’s Green Power Partnership

EPA’s Green Power Partnership

[Enesta Jones] Hello and welcome to Green Scene, an environmental podcast you can take with you. I’m Enesta Jones with EPA’s Office of Public Affairs. EPA has a number of voluntary programs that work with the public in helping to protect the environment. Today I’m joined by Blaine Collison, program director of EPA’s Green Power …

Lush Cosmetics – Our Environmental Policy

Lush Cosmetics – Our Environmental Policy

It was very difficult to write an Environmental Policy for Lush and part of the reason was because so many things had been there from the beginning and some of them, as Lush grew, some of them fell away. and had to be resurrected Lush is so organic, that we thought that something that had …

Brandon Lucia: Energy Harvesting Computers: Extracting Energy from the Environment

Brandon Lucia: Energy Harvesting Computers: Extracting Energy from the Environment

In my lab, we’re developing the basic technology to support what are called “energy harvesting computers.” These are devices that can perform computations, sense their environments, and communicate using energy that they extract from their environments. We can make devices harvest radio waves or use solar energy. By powering these devices with energy extracted from …

Environmental Econ: Crash Course Economics #22

Environmental Econ: Crash Course Economics #22

Adriene: Welcome to Crash Course Economics. I’m Adriene Hill Jacob: And I’m Jacob Clifford. Economics is about choices, and how we use our scarce resources. It’s not just about producing and consuming, it can also be about conserving. Adriene: Maybe counterintuitively, economics has a lot to add to discussions of how we can balance our …

How Close Are We to Zero-Emissions Electricity?

How Close Are We to Zero-Emissions Electricity?

We’ve all heard the statements and stats about the ominous timeline our planet is on. To avoid the worst effects of climate change––from natural disasters to mass extinction––we know that we need to reduce our greenhouse gas emissions. And fast. And when we stop literally lighting things on fire to power our world, we can …