Climategaters revise world temperature data: 2010 is now the warmest year on record, with 1998 recorded as the third warmest
'One of the main changes is the inclusion of more data from the Arctic region, which has experienced one of greatest levels of warming. Another change is way sea surface temperature (SST) is recorded, accounting for technological advances now available to researchers. Despite the revisions, the overall warming signal has not changed. The scientists say it has remained at about 0.75C (1.4F) since 1900'