ExxonMobil (XOM -0.03%) believes that carbon capture and sequestration (CCS) represents a massive opportunity to make money while helping the environment. The oil giant believes the market for CCS will be worth a staggering $4 trillion by 2050. The company is emerging as an early leader in capturing this massive market opportunity. It recently signed another deal to provide carbon dioxide transportation and storage solutions for a customer. These commercial agreements will supply ExxonMobil with steadier re ...