The Lawyers' Environmental Action Team (LEAT) was established to ensure Tanzania's environment and natural resources are sustainably managed.

Their mission is to enhance the capacity and participation of the people in sub-Saharan Africa to sustainably manage their natural resources and environment through legal, policy and other strategic interventions.

LEAT’s major activities are conducting legal and social-policy research, advocacy work, public interest litigation and giving legal advice.

The issues they work on include: environment law, sustainable environmental management, human rights, sustainable natural resources utilization, management and conservation, governance of natural resources and mining issues.