Ice-albedo feedback is when ice reflects sunlight, which can make things either colder or warmer, depending on what happens next.
Imagine you're playing with a white blanket and a black blanket on a sunny day. The white one reflects most of the sunlight, so it stays cool. The black one absorbs more light, so it gets hotter. Now think of ice as that white blanket, it reflects sunlight back into space.
When ice melts
When there's a lot of ice, like in the Arctic or on glaciers, it keeps things cool because it reflects sunlight. But if the weather warms up and the ice starts to melt, the surface becomes darker, more like that black blanket. Now it absorbs more heat, which makes things warmer still. That warmth can cause even more ice to melt, kind of like a snowball rolling downhill!
When ice grows
On the flip side, if it gets colder, more ice forms, reflecting even more sunlight. This keeps things cold and helps more ice grow, like when you add more white blankets on top of each other.
So, ice-albedo feedback is like a cycle that can either make things warmer or cooler, depending on whether ice is melting or growing!
Examples
- A snowy day reflects more sunlight, making it feel cooler.
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See also
- What are glaciers?
- How do carbon capture technologies reduce atmospheric CO2?
- How do carbon capture technologies combat climate change?
- Can geoengineering reverse climate change, and how does it work?
- How do carbon offset programs claim to fight climate change?