ucla professor to lead environmental bike expedition along california’s coast

Alex Hall in UPI: Climate model uncertainty helps scientists narrow range of predictions

Alex Hall, a climate scientist at UCLA, spoke with UPI about climate modeling.

“Scientists and their models agree, the world is getting warmer and the climate is changing as a result of growing greenhouse gas emissions. But even the best models can’t say exactly what the planet’s climate systems will look like in 2100.

‘We found that the seasonal variation in the amount of snow-cover was closely related to the strength of the snow albedo feedback in the future, across a wide-range of climate models,’ said UCLA professor Alex Hall. ‘As we have satellite measurements of snow-cover variations in the recent past, we can use these observations to select the most likely values of snow-albedo feedback across the models.'”