Kevin Trenbeth on the 2011 Sea level Bump and Australia's wettest two year period

Did you know that during 2011 sea level rise went into reverse and lost 5mm from the global oceans? No? How about that since then, much to the chagrin of climate deniers, sea level rise has accelerated from 3.18mm per year - the rate from 1993 to 2010 - to increase to 10mm per year over the last two years. This acceleration more than makes up for the pothole. The primary cause of this sea level 'speed bump' was the back to back La Nina which moved a phenomenal amount of water from the global oceans to the land. The water has since been making it's way back into the world's oceans.

The question arises, does this explain the 10mm per year increase in sea level rise over the last 2 years? Is ocean thermal expansion or ice sheet melting perhaps contributing more? This may also be the start to an exponential sea level rise which NASA climatologist James Hansen has argued is a possibility. Rob Painting on Skeptical Science says that there is no evidence yet to suggest that ice loss from Greenland or Antarctica has added to the speed bump in any significant manner. We will have to wait and see what the impact of future El Nino or La Nina's will be on sea level rise, and keep watching the rate of mass loss from the ice sheets.

I came across this lecture by climatologist Kevin Trenbeth in which he talks about this sea level speed bump as a unique occurrence in recorded history. While previously there has been slight reductions in sea level rise corresponding to La Nina years, this event is a prominent change. Trenbeth discusses this extreme event near the end of his lecture on October 15, 2012. It is well worth watching the Youtube video if you have a spare 1 hour and 5 minutes. He provides an excellent introduction to climate change and extreme weather events and he is an animated speaker with clear and informative graphical and text slides.

Guest Post: Deep Ocean warming Confirms Global Warming Has Accelerated

New Research Confirms Global Warming Has Accelerated (via Skeptical Science)

Posted on 25 March 2013 by dana1981 A new study of ocean warming has just been published in Geophysical Research Letters by Balmaseda, Trenberth, and Källén (2013). There are several important conclusions which can be drawn from this paper. Completely contrary to the popular contrarian myth,…

Renewable energy: breakthrough in chemical storage technology

Researchers at the University of Calgary have made a breakthrough in cheap and efficient catalysts for converting electricity into chemical storage through electrolysis. This could have a major impact in efficient use and regulation of power from renewable energy sources like wind farms and large scale solar energy power stations.

"This breakthrough offers a relatively cheaper method of storing and reusing electricity produced by wind turbines and solar panels," says Curtis Berlinguette, one of the study authors and associate professor of chemistry and Canada Research Chair in Energy Conversion.

Curtis Berlinguette and Simon Trudel from the University of Calgary Chemistry Department turned their attention to simpler and cheaper catalyst electrodes. They conducted laboratory tests using abundant metal compounds or oxides (including iron oxide or 'rust') to create mixed metal oxide catalysts having a disordered or amorphous, structure. The new catalysts they devised perform as well or better than expensive catalysts now on the market, yet theirs cost 1,000 times less.

Antarctic Peninsula summer melt season prolonged by global warming

The melt season on the Antarctic Peninsula has been getting much longer over the last 60 years, at some locations doubling in length according to the research lead by Dr Nick Barrand of the British Antarctic Survey.

Increased melting season increases the melting stress of ice shelves which hold back significant glacier discharge and sea level rise.

The Antarctic Peninsula is a mountainous region that extends north from the West Antarctic Ice Sheet towards South America. The area is warming much faster than the rest of Antarctica at around 3 times the global average, although the West Antarctic Ice Sheet (WAIS) also appears to be rapidly warming according to measurements at Byrd polar station. Temperatures have risen by up to 3 oC since the 1950s. The warming has been linked to a strengthening of local westerly winds, causing warmer air from the sea to be pushed up and over the peninsula.

• Antarctic Peninsula summer melt season extending
  
• Impact of warming on penguins and marine ecosystem
  
• Invasion of the King Crabs
  

Related: Real Climate - Antarctic Peninsula warming: natural variability or "global warming"?

Biofuel from atmospheric CO2 via a 'Rushing Fireball'

Making a more efficient biofuel may be part of the solution to tackling climate change. Biofuels are essentially carbon neutral, first capturing carbon dioxide through the plant photosynthesis process which is then released when the fuel is burnt. But processing the plant biomass sugars to a fuel that can be used is an inefficient process that can perhaps be improved upon.

Michael Adams, a Professor in Biochemistry and Molecular Biology from the University of Georgia, is researching micro organisms that live near deep ocean volcanic vents, in particular Pyrococcus furiosus, or "rushing fireball," This little single celled anaerobic critter feeds on carbohydrates in the super-heated ocean waters near geothermal vents at temperatures around 100C. It has proven adept at carrying out many basic chemical processes with it's enzymes stable at the high temperatures of it's environment.

Pyrococcus furiosus is a member of the hyperthermophilic Archaea family of creatures and was only discovered relatively recently by Karl Stetter in 1986 in deep sea vents and volcanic marine mud off the coast of Italy.

Fossil Fuel subsidies more than double the spend on Government schools

It seems that we value mining companies making profits to be mostly exported overseas more than investing in public education. According to Environment Victoria fossil fuel subsidies and handouts in Australia amount to more than $10 billion per year, while government schools receive only $4.1 billion each year.

The other issue is that subsidies to the fossil fuel and mining industries distorts the 'free market forces'. New coal mines and other mining ventures would not be developed so rapidly without these subsidies.

Cutting the subsidies would also enable funding for the Gonski education reforms. This would be an investment in the education of our children, a valuable investment in our future.

So join Environment Victoria's campaign and sign their petition by May 14, 2013.

Renewable Electricity flows from Mackay Sugar cogeneration plant

The Carbon Price at work. Mackay Sugar has officially brought online it's new biomass cogeneration power station which has received funding from the Queensland Government and the Federal Government's Clean Technology Investment Program funded by the Carbon Tax. The plant is expected to produce about 38 megawatts of power: 11 megawatts to supply the Racecourse sugar mill and refinery and another 27 megawatts into the State Electricity grid, enough to supply about a third of Mackay's electricity requirements.

Parliamentary Secretary for Climate Change, Industry and Innovation, Yvette D’Ath, opened the $120 million cogeneration electricity plant at Mackay Sugar in Queensland today, 27 March 2013.

Using bargasse, a biomass waste product from sugar cane refining, the new Racecourse Cogeneration Plant will produce enough power for the companies operations plus 30% of the residential power requirements of the town of Mackay, displacing power from coal fired power stations.

Seattle Idle No More: Lummi people reject Cherry Point coal loader

Last Thursday Native Americans from the Lummi nation and their supporters rallied and marched in Seattle to stop the Pacific Gateway coal terminal being built at Cherry Point. In the Pacific Northwest there is much concern over the mining of Powder River Basin coal in Montana and Wyoming and the export of this coal by train the 1300 miles across Idaho to the coastal ports in Oregon and Washington for export to Asia.

Opposition to coal export from the US Pacific Northwest is growing with a number of Environmental Impact Statement Scoping Meetings being held late last year with citizens making an active stand against coal export and climate change. Last week 425 residents of Salem Oregon Sounded the Alarm on coal exports.

The march last Thursday gathered at Westlake Center in Seattle at 3pm before undertaking the 3.8 mile walk from downtown to the SSA Marine Office/Terminal. There were drums and rattles, banners and signs for the long walk to the port area. The march was escorted by police. At one stage they were delayed by a train, which provided an opportunity to dance while waiting.

Interfaith religous activists arrested in Climate civil disobedience outside the Whitehouse

Day 6 of the Tar Sands Blockade continues with 20 civil disobedience arrests in Washington DC according to the Tar Sands Blockade website. Outside the Whitehouse on Thursday March 21 a gathering of concerned citizens from various American religous traditions - Christian, Jewish, Muslim, Native North American - called on President Obama to take bold and courageous actions on climate change, including rejecting the Keystone XL tar sands pipeline. The call was underlined by a 'moral act of loving nonviolent civil disobedience' with 15 choosing to be arrested. View photos on Flickr by AnonMedia: 15 NoKXL Protesters Arrested at the White House .

The action was organized by the Interfaith Moral Action on Climate (IMAC) respresenting a wide variety of religious tradtions. They gathered in Lafayette Park at noon carrying three sacred symbols: palm fronds symbolic of greeting Jesus entry into Jerusalem; The Matzoh, unleavened bread that began as the food of the poor and afflicted but became the bread of life and freedom; and the Globe representing the planet we share, God's creation.

Campbelltown rally hears how Sydney's water catchments under threat from CSG

On Sunday around 300 residents rallied in Campbelltown in western Sydney and called on the NSW state government and Federal Government to protect drinking water and drinking water catchments, and for local communities to protect their farmland and water resources from Coal seam gas (CSG) development. Jess Moore from Stop CSG Illawarra spoke passionately and outlined the campaign to stop coal seam gas mining in Sydney's water catchments and the threat it poses to the millions of people who live in greater Sydney area. Here is her speech with transcription.

The meeting also heard from several other speakers, including Campbelltown City councillor Fred Borg who said "If it is not safe, it's not safe. We say here today stop coal seam gas. If it is not safe in Campbelltown or Macarthur, it's not safe anywhere else. In NSW, nor for that matter in Australia." Watch on youtube.