# Biodiversity on Earth is declining too rapidly to be consistent with a long-term (Old Earth) equilibrium, with the Living Planet Index (LPI) showing "a global decline of 27% between 1970 and 2005. The terrestrial index declined by 25%, freshwater by 29% (this index is calculated to 2003 due to the lack of data available for latter years), and marine by 28%."<ref>http://www.zsl.org/science/research-projects/lpi,1162,AR.html</ref> | # Biodiversity on Earth is declining too rapidly to be consistent with a long-term (Old Earth) equilibrium, with the Living Planet Index (LPI) showing "a global decline of 27% between 1970 and 2005. The terrestrial index declined by 25%, freshwater by 29% (this index is calculated to 2003 due to the lack of data available for latter years), and marine by 28%."<ref>http://www.zsl.org/science/research-projects/lpi,1162,AR.html</ref> |