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e. Geography (from Ancient Greek γεωγραφίαgeōgraphía; combining gê 'Earth' and gráphō 'write') is the study of the lands, features, inhabitants, and phenomena of Earth. [ 1 ] Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities —not merely where objects are, but ...
If all of Earth's crustal surface were at the same elevation as a smooth sphere, the depth of the resulting world ocean would be 2.7 to 2.8 km (1.68 to 1.74 mi). [194] About 97.5% of the water is saline; the remaining 2.5% is fresh water. [195] [196] Most fresh water, about 68.7%, is present as ice in ice caps and glaciers. [197]
Environmental education (EE) refers to organized efforts to teach how natural environments function, and particularly, how human beings can manage behavior and ecosystems to live sustainably. It is a multi-disciplinary field integrating disciplines such as biology, chemistry, physics, ecology, earth science, atmospheric science, mathematics ...
The IPCC Sixth Assessment Report (2023) included projections that by 2100 global warming is very likely to reach 1.0-1.8 °C under a scenario with very low emissions of greenhouse gases, 2.1-3.5 °C under an intermediate emissions scenario, or 3.3-5.7 °C under a very high emissions scenario. [95]
Society portal. v. t. e. Human impact on the environment (or anthropogenic environmental impact) refers to changes to biophysical environments [ 1 ] and to ecosystems, biodiversity, and natural resources [ 2 ] caused directly or indirectly by humans. Modifying the environment to fit the needs of society (as in the built environment) is causing ...
sdgs.un.org. The 2030 Agenda for Sustainable Development, adopted by all United Nations members in 2015, created 17 world Sustainable Development Goals (SDGs). The aim of these global goals is " peace and prosperity for people and the planet" [ 1 ][ 2 ] – while tackling climate change and working to preserve oceans and forests.
An ecosystem (or ecological system) consists of all the organisms and the abiotic pools (or physical environment) with which they interact. [3][4]: 5 [2]: 458 The biotic and abiotic componentsare linked together through nutrient cycles and energy flows. [5] "Ecosystem processes" are the transfers of energy and materials from one pool to another.
Environmental science is an interdisciplinary academic field that integrates physics, biology, meteorology, mathematics and geography (including ecology, chemistry, plant science, zoology, mineralogy, oceanography, limnology, soil science, geology and physical geography, and atmospheric science) to the study of the environment, and the solution of environmental problems.