“If we gave up eating beef we would have roughly 20 to 30 times more land for food than we have now.”

“Fudging the data in any way whatsoever is quite literally a sin against the holy ghost of science. I'm not religious, but I put it that way because I feel so strongly. It's the one thing you do not...”

“There is little evidence that our individual intelligence has improved through recorded history.”

“The oil companies regard nuclear power as their rival, who will reduce their profits, so they put out a lot of disinformation about nuclear power.”

“Geological change usually takes thousands of years to happen but we are seeing the climate changing not just in our lifetimes but also year by year.”

“Sadly, it's much easier to create a desert than a forest.”