The quantity of greenhouse gases released during the industrial production of the stuff we all consume. And why production (rather than consumption) estimates flatter developed countries’ carbon footprints.

Mitigating greenhouse gas emissions and why population controls are ineffective, curbing consumption is useful but culturally challenging, efficiency improvements are great but only slow change, and why net-zero technologies are needed for a complete solution.

For each person earning over $16,000 per year in the richest top 10% of the world there is someone stuck in the bottom 10% earning less than $1,000 per year. As everyone rightfully strives for a top 10% lifestyle emissions could double to over 100 billion tonnes per year and lock-in unknowable damage unless we rapidly transition to a net-zero system.

What does the 2008 financial crisis have in common with climate change risks? Underestimating fat-tails, sub-system collapse, and systemic breakdown - why the carbon crunch could be ten times worse than the credit crunch.

Understanding and attributing the impacts of climate change to support collective action and a least cost solution. The iterative prisoner’s dilemma and how the world is overcoming self-interest.

A brief history of shale gas, fracking, and the quest for ever greater quantities of cheap energy. Calculating the remaining resources of oil, gas, coal, and uranium. And the abundant materials available to build solar panels and wind turbines for a sustainable energy future.

The richest 10% of countries emit 30% of CO2 and take home 50% of global income today. They are also responsible for over 50% of all past emissions and hold 80% of the world’s accumulated wealth. Climate Justice is about how we balance the responsibility for past, present, and future emissions whilst driving a rapid transition to net-zero.

Why the total lifecycle greenhouse gas emissions of wind, solar, hydro, nuclear, and geothermal are at least ten times lower than fossil fuels. How natural gas emissions can be just as bad as coal. And why biofuels are not as low-carbon as you might assume.

Externalities, hyperbolic discounting, lack of information, status quo bias, lock-in, and the renter-tenant dilemma. Just some of the market failures slowing progress towards net-zero.

Comparing the power density of fossil fuel, nuclear, and renewable energy generation. Why wind and solar could power the planet using just 1% of Earth’s dryland.

Understanding the virtuous circle of accumulated knowledge, technology, and surplus energy - a brief history of human innovation and how the industrial revolution increased not only population, but also prosperity.

A brief history of Planet Earth, humans, and civilisation. Population growth, the Malthusian trap, and the power of exponential change.

Comparing the benefits of changes to diet, low carbon solutions, improving yields and reducing waste in reaching net-zero agriculture. Why a vegan planet would create the potential to sequester enough CO2 to reverse all past emissions.

From cow burps to cutting down trees - how global agriculture contributes to global warming. The inefficiency of farming animals, why the average human needs a football pitch worth of agricultural land, and the plentiful supply of calories but pitiful distribution of food.

The clever techniques scientists have devised to reconstruct Earth’s past climate. The unwavering relationship between carbon dioxide and temperature for the last 500 million years. And why Earth’s past is a cautionary tale for humanities’ future - mass extinctions and the hubris of humanity

The women’s rights campaigner who discovered the greenhouse effect. The physics of warming and how scientists have correctly predicted the sensitivity of Planet Earth for over a century.

Why integrated assessment models underestimate the power of the experience curve and overestimate the cost of reaching net -zero. And how wind, solar, and batteries will help deliver a cheaper energy system.

The physics of driving and why the total buying and running costs of electric cars will end up 15% cheaper than their gasoline equivalents. Plus why I think the economics of hydrogen passenger vehicles don’t stack up.

Why nuclear is (and isn’t) the safest form of energy. And why the worst energy disaster in history killed just 3% of the number of people who lose their lives from air pollution every year.

A short history of Doomsters and Boomsters featuring Dr Strangelove, twenty billion chickens, and Playboy magazine. At the heart of this story is a wager over the future of our planet. A bet between a celebrity biologist and a subversive economist with diametrically opposed visions of the future.