Humans as species are capable of radically altering the Earth's ecosystem. One goal of the environmental movement is to maintain a long-term relationship with the natural world. Three themes that provide direction to this goal are:

Sustainability, stewardship and sound science.

Explanation:

Sustainability, stewardship and sound science helps in maintain a long-term relationship with the natural world.

Through contributing to air pollution, the release of harmful substances into the air, human activities affect the environment. Such contaminants can have significant impacts on the natural world, resulting in environmental degradation, and issues such as acid rain and harmful ocean algal blooms.

Human should adhere to environmental laws so as to sustain the ecosystem.