And that was precisely how George had attained his solitary state: fishermen and sailors had eaten his tribe, goats had competed for the sparse vegetation, pigs had devoured the eggs, until he alone remained on Pinta Island, where a Hungarian looking for snails had discovered him in 1971.

ECONOMIST: Nora Ephron and Lonesome George

For many of these regions, basic information required distinguishes between natural and anthropogenic sources of metals in waters, soils and vegetation is sparse or completely lacking.

UNESCO: EARTH SCIENCES FOR SOCIETY