What is Kyoto used for?

Could you please elaborate on the uses and purposes of Kyoto? I understand it's a concept that's often discussed in the context of climate change and environmental policy, but I'm curious to know more about its specific applications and how it's being utilized in practice. Are there any particular industries or sectors that have adopted Kyoto as a framework for reducing their carbon emissions? And how does it differ from other climate agreements or initiatives that are currently in place?