Human activity is not solely responsible for climate change. It can occur due to natural causes as well. Large volumes of sulphur dioxide, ash, water vapor and dust escape into the atmosphere when a volcano erupts. Volcanoes also produce aerosols which reflect solar energy back into space. This cools the atmosphere. However, although volcanoes produce CO2 and greenhouse gases it is minor when compared to what we humans emit into the atmosphere. Changes in the Earth’s orbit and changes to the ocean’s currents are also natural causes that cause climate change.
The pithy summaries of the activists' struggles are accompanied by informative tidbits about the biology, behavior, natural history, and cultural context of the target species, along with delightful photographs of both human and beast. From the grassland-dwelling maned wolf of Central South America to the iceberg-hopping emperor penguin of Antarctica, the book shows how negative human interference imperils the welfare of all living things, and suggests that by taking an active role in conservation, education, and community building, we can help prevent the tragic loss of the world's biological diversity."
Publisher's Weekly, January 2012
There is the same amount of water on Earth today as there was when the dinosaurs roamed. And just less than one percent of the planet's water is… more X Why Care About Water?