Environmental protection

https://www.wikidata.org/wiki/Q832237

Field Hierarchy

Parent
Geography 11.5M papers		Environmental science 8.1M papers
Current
Environmental protection 299k papers
Child
Environmental pollution 40.6k papers	Oil spill 19.1k papers	Coast guard 5,007 papers	Clean energy 3,784 papers
Environmental stress 3,540 papers	Oil pollution 3,424 papers	Fire hazard 2,519 papers	Active carbon 2,415 papers
Deepwater horizon 2,050 papers		Energy resources 1,900 papers

Trends

Notes

History