Well, howdy there, Internet people. It's Bell again. And welcome to the roads with Bell.

Today, we're going over the roads to climate tipping points. Climate tipping points are these critical

thresholds that once crossed could lead to rapid, irreversible, and potentially catastrophic shifts in the climate

and ecosystems all over the world. Once crossed, some of them really don't have a way back. What we're

doing today is going over some of the major climate tipping points. We're going over these because

a number of people have asked about them

lately. Special thanks to Dana on this one. First up, we have Greenland ice sheet collapse. If the

Greenland ice sheet completely melts, it's projected to raise global sea levels by about

seven meters. That's 23 feet. Warming in the Arctic

is melting this ice rapidly. If the melting reaches a certain threshold, it may become irreversible,

continuing even if temperatures stop rising. This process could take centuries, but the impacts on sea level

would be profound and long lasting. Next we have the West Antarctic ice sheet collapse.

The West Antarctic ice sheet is particularly vulnerable because much of its ice sits on a bed

that's below sea level. Warm

ocean water can flow underneath, destabilizing it and melting it faster. A collapse

could eventually raise sea levels by about 11 feet. Some areas, like Sueyte's Glacier,

that's the one known as the Doomsday Glacier, is already showing signs of rapid retreat.

Another ice sheet is the East Antarctic Ice Sheet.

It seems more stable than the West, but parts of the eastern ice sheet, especially the Wilkes and Aurora basins, could contribute significantly

to sea level rise if warming continues. Next is not an ice sheet, but still related to ice.

Arctic Sea Ice Loss. The Arctic Ocean Sea Ice is shrinking rapidly in summer. While this doesn't

directly raise sea levels because it floats, its loss reduces Earth's ability to reflect sunlight,

...