If you haven’t read the book “Sustainability without the hot air” by David MacKay then I strongly recommend it. He makes some assumptions that may not stand the

If you haven’t read the book “Sustainability without the hot air” by David MacKay then I strongly recommend it. He makes some assumptions that may not stand the test of time but overall it’s well reasoned and he explains the maths and logic well. His passing is a real loss to UK science. I got to see him speak once, very engaging and his passion was clear.