The first ever global assessment of environmental rule of law finds weak enforcement to be a global trend that is exacerbating environmental threats, despite prolific growth in environmental laws and agencies worldwide over the last four decades. The UN Environment report found that despite a 38-fold increase in environmental laws put in place since 1972, failure to fully implement and enforce these laws is one of the greatest challenges to mitigating climate change, reducing pollution and preventing widespread species and habitat loss. While there are still gaps in many of the laws, the substantial growth of environmental laws has been dramatic.