Assertion: global warming | /r/CapableOf | observe since pre-industrial period
Facets:
value: between 1850
type: TEMPORAL
value: between 1900
type: TEMPORAL
Source sentences:
text: Global warming is the long-term heating of Earth’s climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth’s atmosphere.