Net Zero Corporate Commitments

In the past year the number of companies committing to net zero greenhouse gas emissions by 2050 has exploded. With the fifty largest companies by value accounting for 28% of global GDP, corporate action is critically important if we are to avoid dangerous climate change. But what does a net zero commitment for a company mean in practice? What distinguishes the good from greenwashing, and can we even tell from the outside? What are the risks and opportunities for a company making a net zero c...