Assertion: climate's change | /r/HasProperty | unprecedented
Facets:
value: in rate
type: OTHER
value: in scale
type: OTHER
value: in the history of modern civilization
type: TEMPORAL
Source sentences:
text: This change has intensified the natural greenhouse effect, driving an increase in surface temperatures and other widespread changes in Earth’s climate that are unprecedented in the history of modern civilization.
text: While there have been prehistoric periods of global warming, observed changes since the mid-20th century have been unprecedented in rate and scale.