Environment | Conservation, Ecology & Sustainability | Britannica
网页2024年8月29日 · environment, the complex of physical, chemical, and biotic factors that act upon an organism or an ecological community and ultimately determine its form and survival. The Earth’s environment is treated in a number of articles.
Natural environment - Wikipedia
网页Universal natural resources and physical phenomena that lack clear-cut boundaries, such as air, water and climate, as well as energy, radiation, electric charge and magnetism, not originating from civilized human actions. In contrast …
The Planet - National Geographic
网页Scattered by climate change, a family stays close. Hundreds of millions of people in the Himalayan region rely on glaciers for their water supply. Global climate change is forcing many to leave...
Human Impacts on the Environment - National Geographic Society
网页Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Environment - NPR
网页Breaking news on the environment, climate change, pollution, and endangered species. Also featuring Climate Connections, a special series on climate change co-produced by NPR and National...
Environment Portal | Britannica
网页Environment, the complex of physical, chemical, and biotic factors that act upon an organism or an ecological community and ultimately determine its form and survival. The Earth’s environment is treated...
U.S. Environmental Protection Agency | US EPA
网页2024年9月13日 · Understanding and addressing climate change is critical to EPA's mission of protecting human health and the environment. Find resources and accurate information about climate change.
Ecosystem | Definition, Components, Examples, Structure ...
网页2024年8月15日 · ecosystem, the complex of living organisms, their physical environment, and all their interrelationships in a particular unit of space. A brief treatment of ecosystems follows. For full treatment, see biosphere.
UNEP - UN Environment Programme
网页Efforts to counter the triple planetary crisis of climate change, nature and biodiversity loss, and pollution and waste must be ramped up in order to truly transform societies and economies for everyone, everywhere. Find out what we are doing.
U.N. report calls for ‘urgent action’ to protect the environment
网页2019年3月13日 · A major extinction event is underway, compromising the globe’s “ability to meet human needs,” the report warns. Biodiversity helps regulate climate, filters air and water, forms soil, and ...
- 某些结果已被删除