Environmental law is a set of rules created to protect the environment. These laws guide how people and organizations use land, water, air, and natural resources. Governments and organizations create and enforce these rules. They apply to activities such as industry, construction, and resource use.

Environmental laws exist in countries around the world and are also part of international agreements. Different regions have different laws based on their environments and needs. These laws are used in many areas, including cities, rural land, and natural spaces.

Environmental law developed mainly in the 20th century and continues today. It is part of legal systems in many countries. Governments and organizations continue to create and update these rules.