The first-in-the-nation law will compel major companies to publicly disclose their carbon dioxide emissions and could have national repercussions.

SB253 is important not just for California, but worldwide, because it mandates disclosure of global emissions, including:

  • Direct emissions from the company’s operations
  • Emissions from their suppliers (this can be an estimate, but businesses will be asking their suppliers)
  • Emissions caused by use of the company’s products (also an estimate)

Because every large company doing business in California is covered, and businesses are asking their suppliers for emissions data, we’ll end up with meaningful worldwide disclosure of corporate greenhouse gas emissions.