Lindisfarne Labs
A climate explainer by Lindisfarne Labs

What is climate change, really?

Before you can spot the spin, you need the science. Scroll down — we'll start with the sun and build, step by step, to your carbon footprint. No jargon, no lectures.

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The story starts here

Our story starts with the sun.

Every bit of energy in Earth's climate begins as sunlight — a furnace 150 million kilometres away, pouring out light and heat in every direction.

Energy on the move

The sun sends light and heat out into the galaxy.

It radiates in all directions at once. A tiny sliver of that energy happens to travel towards us.

Reflection

It bounces off things — and keeps moving.

Sunlight hits the planet, warms it, and reflects back out as heat. Left alone, most of that heat would simply escape into space.

The greenhouse effect

Earth's atmosphere traps some of that heat. This is good.

A thin blanket of gases holds enough warmth to keep the planet liveable. Without it, Earth would be a frozen rock. This is the greenhouse effect — and we need it.

Greenhouse gases

Human activity adds more greenhouse gases.

There are several GHGs. Tap any gas to see where it comes from and how intense it is — then how they all add up to one number.

The problem

More gases means more trapped heat. This is bad.

The blanket gets thicker. Heat that used to escape now stays. The whole planet runs a low, persistent fever — and that's what we mean by climate change.

Carbon footprint

Your footprint is your CO2e.

Your footprint is the CO2e — carbon dioxide equivalent — cost of everything you consume. Every flight, meal, and purchase carries one.

A fair word

It's nonsense to shame normal people for their footprint.

The systems we live inside decide most of our emissions for us. Blaming individuals for choices the system makes hard is a convenient distraction.

*Normal individuals. You can still shame a pop star with a private jet, or a politician with questionable campaign contributions.

Your agency

But you're part of the system that has to change.

Understanding the footprint of the world around you makes it far easier to be part of the solutions we actually need. Knowledge is leverage.