Amazon (NASDAQ: AMZN) is the fourth-largest company on the stock market by market capitalization, but it's way behind the top three -- Apple, Nvidia, and Microsoft, which have all traded the top spot over the past year and are all worth more than $3 trillion. Amazon's market cap is closer to $2 trillion, quite a wide gap. Amazon has incredible opportunities in artificial intelligence (AI), and its stock is up 35% this year, outdoing its larger peers, except for Nvidia...

Amazon.com Inc plans to pilot a new carbon-removal material for data centers, which are at risk of worsening emissions from artificial intelligence systems they power, a startup behind the deal said on Monday. In a twist, AI itself, from the startup Orbital Materials, is what designed the carbon-filtering substance, its Chief Executive Jonathan Godwin said. "It's like a sponge at the atomic level," Godwin told Reuters...