Feeds

Is the earth getting warmer, or cooler?

A tale of two thermometers

  • alert
  • submit to reddit

Internet Security Threat Report 2014

NASA temperatures for March 2008 indicate that it was the third warmest March in history, but satellite data sources RSS and UAH disagree. They show March as the second coldest ever in the southern hemisphere, and barely above average worldwide. (The northern hemisphere in March was split between a cold North America and a very warm Asia, causing temperatures in the northern hemisphere to be above average.) Data so far for April shows both hemispheres back on the decline, and April is shaping up to be an unusually cool month across most of the globe (Africa, South America, North America and portions of Europe and Asia).

Bottom Line

Both of the satellite data sources, as well as Had-Crut, show worldwide temperatures falling below the IPCC estimates. Satellite data shows temperatures near or below the 30 year average - but NASA data has somehow managed to stay on track towards climate Armageddon. You can draw your own conclusions, but I see a pattern that is troublesome. In science, as with any other endeavour, it is always a good idea to have some separation between the people generating the data and the people interpreting it.

Some good news moving forward was reported this week by Anthony Watts, who blogs at Watt's Up With That? USHCN has issued a press release indicating that they are upgrading their methodology and ending the practice of adjusting data upwards for future temperature readings. This will make the data more credible, though will not resolve the issues associated with growing urban heat islands or a lack of spatial coverage across the planet.

Bear in mind that warming and cooling concerns are nothing new, as this alarming bulletin reminds us -

The Arctic ocean is warming up, icebergs are growing scarcer and in some places the seals are finding the water too hot, according to a report to the Commerce Department yesterday from Consul Ifft, at Bergen, Norway. Reports from fishermen, seal hunters and explorers, he declared, all point to a radical change in climate conditions and hitherto unheard-of temperatures in the Arctic zone. Exploration expeditions report that scarcely any ice has been met with as far north as 81 degrees 29 minutes. Soundings to a depth of 3,100 meters showed the gulf stream still very warm. Great masses of ice have been replaced by moraines of earth and stones, the report continued, while at many points well known glaciers have entirely disappeared. Very few seals and no white fish are found in the eastern Arctic, while vast shoals of herring and smelts, which have never before ventured so far north, are being encountered in the old seal fishing grounds.

A RealClimate blogger? No, that was the US Weather Bureau in 1922.

We saw a global cooling scare in 1924, a global warming scare in 1933, another global cooling in the early 1970s, and another warming scare today. The changes the USHCN promised Watts won't help resolve anything for another decade or so, but perhaps future generations will be able to reduce the alarming increase in the number of climate alarms.®

Beginner's guide to SSL certificates

More from The Register

next story
MEN: For pity's sake SLEEP with LOTS of WOMEN - and avoid Prostate Cancer
And, um, don't sleep with other men. If that's what worries you
Voyager 1 now EIGHTEEN LIGHT HOURS from home
Almost 20 BEEELION kilometres from Sol
Jim Beam me up, Scotty! WHISKY from SPAAACE returns to Earth
They're insured for $1m, before you thirsty folks make plans
ROGUE SAIL BOAT blocks SPACE STATION PODULE blastoff
Er, we think our ISS launch beats your fishing expedition
Comet Siding Spring revealed as flying molehill
Hiding from this space pimple isn't going to do humanity's reputation any good
BAE points electromagnetic projectile at US Army
Railguns for 'Future fighting vehicle'
OK Google, do I have CANCER?
Company talks up pill that would spot developing tumors
LONG ARM of the SAUR: Brachially gifted dino bone conundrum solved
Deinocheirus mirificus was a bit of a knuckle dragger
prev story

Whitepapers

Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.