Greenhouse gas

https://www.wikidata.org/wiki/Q167336

Field Hierarchy

Parent
Biology 36.5M papers	Geology 10.5M papers	Ecology 8.2M papers	Oceanography 2.6M papers
Current
Greenhouse gas 173k papers
Child
Carbon footprint 17.6k papers	Climate change mitigation 12.2k papers	Emissions trading 9,631 papers	Kyoto Protocol 8,924 papers
Carbon tax 6,127 papers	Methane emissions 5,559 papers	Low-carbon economy 5,434 papers	Carbon neutrality 4,088 papers
Climate policy 4,086 papers		Atmospheric methane 3,794 papers

Trends

Notes

History