Uploaded August 2026 | Updated September 2026, 2 weeks ago
This is a live-stream of the lecture. An edited version of the lecture will be uploaded in due course.
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https://app.sli.do/event/xwLV9nUoWAswAhi6ApzoQe
A lecture by Helen Czerski
Around 80% of our global energy (including transport and industry as well as electricity) currently comes from fossil fuels. This energy was collected by plants over millions of years and stored underground, away from the rest of the Earth system. But there is a huge cascade of energy flowing through the Earth system all the time and it’s continually replenished by the Sun.
Renewable energy sources tap into that cascade. This lecture examines how much of Earth’s energy is available and useful to us, and how tapping into it affects Earth’s natural systems. What is the potential, and are there any unwanted side effects? What would the world look like if we tapped into this resource on a much larger scale?
The transcript and downloadable versions of the lecture are available from the Gresham College website:
gresham.ac.uk/whats-on/energy-everywhere
Gresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: gresham.ac.uk/support
Website: gresham.ac.uk
Twitter: twitter.com/greshamcollege
Facebook: facebook.com/greshamcollege
Instagram: instagram.com/greshamcollege
This is a live-stream of the lecture. An edited version of the lecture will be uploaded in due course.
Have a Question? No Registration Required
https://app.sli.do/event/xwLV9nUoWAswAhi6ApzoQe
A lecture by Helen Czerski
Around 80% of our global energy (including transport and industry as well as electricity) currently comes from fossil fuels. This energy was collected by plants over millions of years and stored underground, away from the rest of the Earth system. But there is a huge cascade of energy flowing through the Earth system all the time and it’s continually replenished by the Sun.
Renewable energy sources tap into that cascade. This lecture examines how much of Earth’s energy is available and useful to us, and how tapping into it affects Earth’s natural systems. What is the potential, and are there any unwanted side effects? What would the world look like if we tapped into this resource on a much larger scale?
The transcript and downloadable versions of the lecture are available from the Gresham College website:
gresham.ac.uk/whats-on/energy-everywhere
Gresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: gresham.ac.uk/support
Website: gresham.ac.uk
Twitter: twitter.com/greshamcollege
Facebook: facebook.com/greshamcollege
Instagram: instagram.com/greshamcollege
