Smoke from Amazon fires could accelerate glacial melting in Andes

Fires in the Amazon rainforest are contributing to the accelerated melting of Andean glaciers. Brazilian scientists have found that smoke from these fires carries black carbon particles to the Zongo glacier in Bolivia. This black carbon darkens the ice and snow, reducing their ability to reflect sunlight and increasing the rate of melting. The research highlights the potential for a water crisis in South America due to glacier loss, which could have significant social implications.

What altitude range is mentioned in relation to the deposition of black carbon on the Zongo glacier?

Who is the lead researcher mentioned in the text, and what did they report?