Category Archives: Data and observations

Challenges to understanding the role of the ocean in climate science

by Carol Anne Clayson

A significant area of uncertainty in climate science and one of the biggest limitations on our ability to predict the timing, location and impacts of climate change is our limited understanding of ocean processes and their interactions with the atmosphere, land, and ice systems.

Continue reading

How long is the pause?

by Judith Curry

UPDATE:  comments on McKitrick’s paper

With 39 explanations and counting, and some climate scientists now arguing that it might last yet another decade, the IPCC has sidelined itself in irrelevance until it has something serious to say about the pause and has reflected on whether its alarmism is justified, given its reliance on computer models that predicted temperature rises that have not occurred.Rupert Darwall 

Continue reading

Are the deep oceans cooling?

by Judith Curry

Direct determination of changes in oceanic heat content over the last 20 years are not in conflict with estimates of the radiative forcing, but the uncertainties remain too large to rationalize e.g., the apparent “pause” in warming. – Wunsch and Heimbach

Continue reading

Understanding adjustments to temperature data

by Zeke Hausfather

There has been much discussion of temperature adjustment of late in both climate blogs and in the media, but not much background on what specific adjustments are being made, why they are being made, and what effects they have. Adjustments have a big effect on temperature trends in the U.S., and a modest effect on global land trends. The large contribution of adjustments to century-scale U.S. temperature trends lends itself to an unfortunate narrative that “government bureaucrats are cooking the books”.

Continue reading

NCDC responds to concerns about surface temperature data set

Our algorithm is working as designed. – NOAA NCDC

Continue reading

Skeptical of skeptics: is Steve Goddard right?

by Judith Curry

Skeptics doing what skeptics do best . . . attack skeptics.Suyts

Continue reading

The inconvenient Southern Hemisphere

by Judith Curry

Given the new information now available from the Southern Hemisphere, climate scientists must consider a larger role for natural climate variability in contributing to global temperature changes over the past millennium. – Kim Cobb

Continue reading