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This type of biodiversity loss is known as one of the most critical threats to global biodiversity. The possible causes include habitat destruction and modification, diseases, exploitation, pollution , pesticide use, introduced species , and ultraviolet-B radiation (UV-B).
The Global Assessment Report on Biodiversity and Ecosystem Services is a report [1] by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, on the global state of biodiversity. A summary for policymakers was released on 6 May 2019. [2]
Global biodiversity is the measure of biodiversity on planet Earth and is defined as the total variability of life forms. More than 99 percent of all species [ 1 ] that ever lived on Earth are estimated to be extinct .
In April 2002, and again in 2006, at the Convention on Biological Diversity (CBD), 188 nations committed themselves to actions to: "… achieve, by 2010, a significant reduction of the current rate of biodiversity loss at the global, regional and national levels…" [24] The LPI played a pivotal role in measuring progress towards the CBD's 2010 ...
Data directly related to diversity loss at global level is more sparse than for abundance or biomass declines. Estimates for diversity loss at a planetary level tend to involve extrapolating from abundance or biomass data; while studies sometimes show local extirpation of an insect species, actual world wide extinctions are challenging to discern.
Story at a glance Reducing carbon emissions to ensure the planet does not warm over 2 degrees celsius compared with pre-industrial levels has been a global goal since the 2015 Paris climate summit.
Extreme weather was the top longer-term global risk, followed by biodiversity loss, critical change to earth's systems and a shortage of natural resources.
However, biodiversity loss is occurring rapidly on a global scale – since 1970, wildlife populations declined by 69%, on average, between 1970 and 2018. [28] Biodiversity loss and its potential implications on ecosystem functioning, ecosystem services, the global economy, and wider society have gained increasing attention. [28]