"Palaeoclimatic information supports the interpretation that the warmth of the last half century is unusual in at leas…"

"Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the obs…"

"Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air …"

"Average arctic temperatures increased at almost twice the global average rate in the past 100 years."

"Average Northern Hemisphere temperatures during the second half of the 20th century were very likely higher than duri…"

"Global average sea level in the last interglacial period (about 125,000 years ago) was likely 4 to 6 m higher than du…"

"Extreme precipitation events over most of the mid-latitude land masses and over wet tropical regions will very likely…"

"Global atmospheric concentrations of carbon dioxide, methane and nitrous oxide have increased markedly as a result of…"

"At continental, regional and ocean basin scales, numerous long-term changes in climate have been observed. These incl…"

"Discernible human influences now extend to other aspects of climate, including ocean warming, continental-average tem…"