Summary:

- The article discusses a study that found most climate policies implemented around the world do not effectively reduce greenhouse gas emissions.
- The study, published in the journal Nature Climate Change, analyzed over 800 climate policies across 72 countries and found that only about 18% of them were effective in reducing emissions.
- The article suggests that the findings highlight the need for more targeted and effective climate policies that address the root causes of emissions, rather than relying on broad, ineffective measures.