Humanity faces unique challenges due to climate change. The U.S. Securities and Exchange Commission (SEC) is recognized as the highest regulatory body in the United States with the authority to develop, adopt and promulgate legal rules relevant to the Institution’s core mission of protecting the broad-based interests of investors, promoting market efficiency and competition, and fostering capital formation. On 21 March 2022, the Commission (SEC) proposed comprehensive and far-reaching guidelines for disclosure requirements for public companies regarding climate change and climate-related risks, both actual and potential. Based on many years of volunteer work by dedicated Commissioners, the SEC’s Proposal affects both U.S. public companies and foreign private issuers. The Proposal, which is over 500 pages long, would require if adopted, covered public companies to disclose information about their greenhouse gas emissions and many other related issues. The purpose of this article is to review, analyze and discuss the challenges and strong legal opposition to the SEC’s Proposal for mandatory corporate disclosure of climate-related risk information. The Proposal has generated discussion, heated debate, and disagreement, and opponents have raised valid arguments and considerations. Long before the Proposal was released, the debate over the SEC’s authority (power, competence, and jurisdiction) was ignited, particularly from a legal perspective. This, in turn, cast a cloud over the newly proposed rules on climate-related issues. Moreover, in a letter to the SEC, professors, led by Lawrence A. Cunningham of George Washington University, expressed concern about the release and content of the Proposal, stating, “the passions of this topic [issue] have led the SEC to overzealous rulemaking that exceeds its authority”. The methods employed by the author include a thorough examination of relevant literary sources, analysis and synthesis, induction and deduction, descriptive approach, observation, comparison, analogy, and others. The SEC’s Proposal to establish rules for the disclosure of climate change risks has been the subject of extensive public comment, questioning, and deliberation. The SEC’s asserted authority to regulate the emerging new area of climate change – a subject that some critics believe may be outside the scope of the SEC’s mission and mandate – without additional Congressional authorization, has been the focus of considerable interest and exploration, criticism, analysis, and scrutiny. The SEC should consider and respond to any substantive arguments or information provided by public commenters in accordance with the general administrative law rules and procedures. The Agency may modify the provisions of the Proposal, under adoption, in response to comments, but it may not, without additional notice and discussion, make changes to the Proposal that are so significant that the public would not have had a reasonable opportunity to comment on the final rules. Significant legal challenges and litigation were expected to follow if the Proposal was adopted in its original, initial form, or any other form without substantial revision. Any legal challenge (objection) could take years to resolve in the federal courts. Even then, the conflict could persist and continue as long as defendants in SEC enforcement actions raise “as applied” arguments against the new rules. The SEC has extended the comment period to 17 June 2022 in light of “significant interest”, particularly from the communities of investors, corporate officials, and issuers. However, due to a technical glitch, the SEC reopened the comment period in October 2022. In line with longstanding tradition and practice, the SEC was expected to analyze the comments before releasing the final guidelines for adoption. Despite the ongoing dynamic debate, in November 2022, the Commission published a new, updated Proposal to improve and standardize the rules on climate-related disclosures to investors. The Proposal of November 2022, if adopted, would, for the first time, require public companies to disclose their greenhouse gas emissions and, in some cases, to share this information with the reporting companies’ suppliers and customers. Some public companies would be required to disclose additional information in their SEC filings about their long-term climate change strategies and ongoing initiatives to manage likely climate-related risks. [ABSTRACT FROM AUTHOR]