Environmental activism is the effort to protect the natural environment and promote sustainable practices. Activists work to raise awareness about issues like climate change, pollution, and deforestation. They often organize campaigns, protests, and educational programs to encourage individuals and governments to take action. Many environmental activists focus on specific causes, such as protecting endangered species or advocating for renewable energy sources like solar and wind power. Organizations like Greenpeace and the Sierra Club play significant roles in mobilizing communities and influencing policy changes to safeguard the planet for future generations.