The statement that is true about turning points in environmental policy is:
c. Turning points in environmental policy have come about through increased public awareness.
Explanation:
1. Public awareness plays a significant role in shaping environmental policy decisions.
2. When the public becomes more informed and concerned about environmental issues, it often leads to pressure on policymakers to enact or change policies.
3. Examples of this can be seen in movements like the environmental activism of the 1960s and 1970s that led to the creation of landmark environmental laws such as the Clean Air Act and the Clean Water Act.
4. Public awareness campaigns, advocacy groups, and grassroots movements have historically influenced the direction of environmental policy by raising awareness and mobilizing public support for environmental protection.