What are greenhouse gas concentrations?

Greenhouse gas concentrations are like the number of blankets you pile on your bed, more blankets mean it’s warmer inside the bed.

Imagine Earth is a cozy house, and greenhouse gases are like the blankets covering it. These gases trap heat from the Sun, keeping our planet warm enough for us to live on. The concentration means how many of these "blankets" there are in the air around us, more blankets (higher concentration) mean more warmth stays trapped.

Scientists use special tools to count how many greenhouse gas molecules are floating in the sky, just like you might count how many pillows are on your bed. The most common ones are carbon dioxide and methane, which come from things like cars, factories, and even cows!

Every year, we add more blankets, so the concentration goes up, and Earth gets a little warmer.

Think of it like this: if you keep adding blankets to your bed every night, eventually you’ll be too hot to sleep. The same thing is happening with our planet, more greenhouse gases mean more heat stays trapped, making the world warmer over time.