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Without sea-level acceleration, the 20th-century sea-level trend of 1.7 mm/y would produce a rise of only approximately 0.15 m from 2010 to 2100; therefore, sea-level acceleration is a critical component of projected sea-level rise. To determine this acceleration, we analyze monthly-averaged records for 57 U.S. tide gauges in the Permanent Service for Mean Sea Level (PSMSL) data base that have lengths of 60–156 years. Least-squares quadratic analysis of each of the 57 records are performed to quantify accelerations, and 25 gauge records having data spanning from 1930 to 2010 are analyzed. In both cases we obtain small average sea-level decelerations. To compare these results with worldwide data, we extend the analysis of Douglas (1992) by an additional 25 years and analyze revised data of Church and White (2006) from 1930 to 2007 and also obtain small sea-level decelerations similar to those we obtain from U.S. gauge records.

Hi Hans,

Here is our latest statement regarding the UEA investigation. Thanks.

Following the publication of e-mails and other data prior to the COP15 Climate Change Conference in Copenhagen in December 2009, the Norfolk Constabulary investigation into the data breach at the University of East Anglia continues. With the many different lines of enquiry that officers identified, the workload has varied with specialist investigators/law enforcement partners used when needed.

Commenting on the investigation, Senior Investigating Officer (SIO), Detective Superintendent Julian Gregory said: "This has been a complex investigation, undertaken in a global context and requiring detailed and time consuming lines of enquiry. Due to the sensitivity of the investigation it has not been possible to share details of enquiries with the media and the public and it would be inappropriate for us to comment any further at this time."

Note to Editors: It is acknowledged that interest in this case continues, given that the enquiry has now been running for approximately a year and that there is a desire for us to publish further detail. However, the circumstances of the case do not lend themselves to public comment at this time due to the sensitivities of the investigation and this is unlikely to change in the near future.

Nicola Atter Corporate News Co-ordinator, Newsroom Communications and Public Affairs, Norfolk Constabulary