Tag Archives: methane

Climate clippings 161

1. Lakes warming faster than atmosphere

Courtesy of John D, from Gizmag, an item that has implications for algal blooms, health of species, food and methane emissions.

    Specifically, the results show that the average temperature in the lakes has been rising by 0.61 degrees Fahrenheit every 10 years. While that might not seem too significant, it’s a higher rate of warming than witnessed in either the atmosphere or the ocean, and the long-term effects could be pronounced… Continue reading Climate clippings 161

Turn down the heat : confronting the new climate normal

Turn down the heat : confronting the new climate normal is a massive 320 page report prepared for the World Bank by the Potsdam Institute for Climate Impact Research and Climate Analytics, and hence highly authoritative. Continue reading Turn down the heat : confronting the new climate normal

Climate clippings 110

1. 25 climate change disasters

Business Insider, Australia tells us that 25 disasters may befall us from climate change. The assumptions are conservative – 2°C and half a metre of sea level rise by 2100, though the text sometimes specifies more. Some of the predictions are disturbing: Continue reading Climate clippings 110

Climate clippings 67

I’ve used a random image for the featured image of this post. I was going to use the one that once was my gravatar (to the left) but the original is quite small and it came up fuzzy. Continue reading Climate clippings 67

Climate clippings 66

New solar PV nanotechnology

There have been so many developments in PV technology it’s hard to know which will be significant.

Gizmag tells us about new material consisting of tiny hollow spheres, made out of nanocrystalline-silicon.

The new material is efficient, light, flexible, should be easy and cheap to make and their efficiency is less affected by the angle of the sun.

No downsides are mentioned. Continue reading Climate clippings 66

Climate clippings 61

David Archer on methane

Arctic methane plumes

Climate clippings 58 led with an item on Methane worries. @ 18 I identified David Archer as one who is “very knowledgeable on the matter [and] thinks the process will be chronic rather than catastrophic.” Continue reading Climate clippings 61

Climate clippings 58

Methane worries

A team of Russian research scientists have been surveying the seabed of the East Siberian Arctic Shelf off northern Russia for nearly 20 years.

In an exclusive interview with The Independent, Igor Semiletov, of the Far Eastern branch of the Russian Academy of Sciences, said that he has never before witnessed the scale and force of the methane being released from beneath the Arctic seabed.

“Earlier we found torch-like structures like this but they were only tens of metres in diameter. This is the first time that we’ve found continuous, powerful and impressive seeping structures, more than 1,000 metres in diameter. It’s amazing,” Dr Semiletov said. “I was most impressed by the sheer scale and high density of the plumes. Over a relatively small area we found more than 100, but over a wider area there should be thousands of them.”

I realise this has been linked to three times in the previous thread, but it’s important and not everyone reads the comments threads.

A separate study has found that the methane stored in permafrost is three times larger than earlier estimates. It could release 1.7-5.2 times more carbon than previously thought, depending how rapidly the world warms.

In a cautionary note here, James Hansen reckons we are forcing the system 20,000 times faster than commonly happened through natural caused in the past 50 million years. Continue reading Climate clippings 58

Climate clippings 55

WMO Greenhouse Gas Bulletin

The World Meteorological Organization’s Greenhouse Gas Bulletin has just been released. These graphs show the ‘progress’ of the main gases.

The WMO is agnostic about the reason for the increase in methane emissions, but in this ABC story Paul Fraser from the CSIRO tells us what they are thinking and it’s not good news.He says that the increase of methane is coming from high and low attitudes, which seems to indicate that northern permafrost and tropical wetlands may be the source.

The story also looks at HFCs and refrigeration. As linked on the last thread, go here to Figure 2.21 for the IPCC’s graph on forcings. Continue reading Climate clippings 55

Climate clippings 54

Wind electricity to be fully competitive with natural gas by 2016

So says Stephen Lacey at Climate Progress:

The best wind farms in the world are already competitive with coal, gas and nuclear plants. But over the next five years, continued performance improvements and cost reductions will bring the average onshore wind plant in line with cheap natural gas, even without a price on carbon.

That’s according to Bloomberg New Energy Finance. They say that cost reduces by 7% for every doubling of installed capacity, while efficiency has steadily improved. Continue reading Climate clippings 54