Greenhouse gas

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

Field Hierarchy

Parent
Biology 36M papers	Geology 10.4M papers	Ecology 8.1M papers	Oceanography 2.6M papers
Current
Greenhouse gas 167k papers
Child
Carbon footprint 16.5k papers	Climate change mitigation 11.9k papers	Emissions trading 9,334 papers	Kyoto Protocol 8,858 papers
Carbon tax 5,872 papers	Methane emissions 5,419 papers	Low-carbon economy 5,225 papers	Climate policy 3,975 papers
Atmospheric methane 3,750 papers		Carbon neutrality 3,565 papers

Trends

Notes

History