Environmental education businesses help people understand the natural environment, human impacts on it and ways to use resources more sustainably. They may work with schools, community groups, businesses, public bodies or individual learners, adapting their activities to different ages, subject areas and levels of prior knowledge. Provision can take place in classrooms, workplaces, nature reserves, museums or other outdoor settings. Typical services include lessons, workshops, talks, guided walks, field studies and educational visits. Topics may cover wildlife and habitats, biodiversity, climate change, waste and recycling, energy, water, food systems and conservation. Providers may also develop teaching materials, activity packs, online learning resources, staff training or programmes linked to a group's sustainability goals.