Provides charts showing how the levels of methane, carbon dioxide, and nitrous oxide have increased greatly over the past 100 years.
(charts; showing; how the levels of methane, carbon dioxide, and nitrous oxide have increased greatly over the past 100 years) Context(charts showing,List([9, 23))):(the levels of methane, carbon dioxide, and nitrous oxide; have increased greatly; T:over the past 100 years)
charts showing,List([9, 23))
charts the levels of methane, carbon dioxide, and nitrous oxide
showing have increased greatly
how the levels of methane, carbon dioxide, and nitrous oxide have increased greatly over the past 100 years
T:over the past 100 years