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Most greenhouse gases have both natural and human-caused sources. An exception are purely human-produced synthetic halocarbons which have no natural sources. During the pre-industrial Holocene, concentrations of existing gases were roughly constant, because the large natural sources and sinks roughly balanced.
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 ...
Marine plastic pollution. The pathway by which plastics enters the world's oceans. Marine plastic pollution is a type of marine pollution by plastics, ranging in size from large original material such as bottles and bags, down to microplastics formed from the fragmentation of plastic material. Marine debris is mainly discarded human rubbish ...
t. e. Pollution is the introduction of contaminants into the natural environment that cause adverse change. [1] Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring ...
Air pollution is the largest environmental risk factor for disease and premature death and the fourth largest risk factor overall for human health. Air pollution causes the premature deaths of around 7 million people worldwide each year, or a global mean loss of life expectancy (LLE) of 2.9 years, and there has been no significant change in the ...
Environmental issues in Myanmar include air pollution, water pollution, deforestation, and issues relating to climate change. Myanmar is a country with a high percentage of forest covering and is said to have the most forest cover remaining in a Southeast Asia country. At the same time, it also has a rapid deforestation rate of over 2 percent ...
Deforestation is a primary contributor to climate change, [1] [2] and climate change affects the health of forests. [3] Land use change, especially in the form of deforestation, is the second largest source of carbon dioxide emissions from human activities, after the burning of fossil fuels. [4] [5] Greenhouse gases are emitted from ...
Freepik (stylized as FREEP!K) is an image bank website.Content produced and distributed by the online platform includes photographs, illustrations and vector images. The platform distributes its content under a freemium model, which means that users can access much of the content for free, but it is also possible to purchase a subscription with advantages such as access to more exclusive ...