Fossil Fuel Resistance (Image: D. Fraser)

Climate Change is Simple

For a clear and straightforward summary of the current climate change situation this video presentation by David Roberts (edited by Ryan Cooper) is highly recommended:

It is certainly difficult for me to watch something like that and not feel the need to change my ways. For me that’s not just having solar panels and buying an electric car, but also seeing what else I can do to reduce my carbon footprint.

What about you? If you have any comments, please reply below.

Home Forums Climate Change is Simple

This topic contains 11 replies, has 3 voices, and was last updated by  Trevor Larkum 13 years, 5 months ago.

Viewing 10 posts - 1 through 10 (of 12 total)
  • Author
    Posts
  • #5275

    Trevor Larkum
    Keymaster

    For a clear and straightforward summary of the current climate change situation this video presentation by David Roberts (edited by Ryan Cooper) is hi
    [See the full post at: Climate Change is Simple]

    #5276

    Electric Ali
    Participant

    An excellent video presentation.

    The message is clear, even if we stop emissions now, more climate change and higher temperatures are already baked into the cake for later this century.

    If we continue with business as usual, the situation will become catastrophic.

    The “good” news is that we cannot continue business as usual. Global oil production is about to enter decline within the next 3 years according to a growing number of specialists including, for example, the UK Industry Task Force on Peak Oil and Energy Security (Virgin, Scottish and Southern Energy, Solar Century, Arup, Stagecoach etc). Car manufacturers know this and that is why electric cars are appearing on the market.

    Those that study fossil fuel decline point out that the IPCC emission scenarios (SRES) are totally unrealistic. They are far too high. There is hardly enough economically available oil, coal and natural gas to hit even the lowest range scenario from the IPCC at the end of the century. I would recommend reading “Peeking at Peak Oil” by Kjell Aleklett for a detailed analysis of our likely fossil fuel future.

    Personally, after 6 years of reading about the subject, I am convinced by the fossil fuel depletionist’s position. I am also convinced that climate change is happening. However, I believe that our most imminent threat is the present energy crisis (higher oil and gas prices) precipitating a further financial collapse and major decline in industrial capacity.

    To combat climate change on an individual level, you might consider using efficient infra red heating (Redwell or Infranomics heating panels) especially if your part of the world has a high or growing mix of renewables in the electricity supply mix and even more so if you are using oil for heating at present. For water heating, consider something like the Sanden EcoAqua air source heat pump with a seasonal CoP of around 3. Encourage local living especially local food production.

    I would add that were we are heading has been known for at least 40 years. The 1972 book “Limits to Growth” modelled likely projections for the world economy, population, pollution, industrial output etc. Their projections were reviewed in 2008 and found to be accurate. See

    http://www.smithsonianmag.com/science-nature/Looking-Back-on-the-Limits-of-Growth.html

    How many economic projections have been accurate over 30 years? I would recommend looking at the graphic in the link above – as if what was predicted in 1972 continues to be valid, we are in for a bumpy ride in the very near future.

    #5277

    Trevor Larkum
    Keymaster

    Hello again!

    “The message is clear, even if we stop emissions now, more climate change and higher temperatures are already baked into the cake for later this century.

    “If we continue with business as usual, the situation will become catastrophic.”

    Absolutely – however, from what I’ve read I still believe there are far more hydrocarbons available in the ground than is required to raise global temperatures by a catastrophic amount (as we discussed under Global Warming’s Terrifying New Math – RollingStone.com). I think this is borne out by all the new and massive increases in natural gas production going on in the USA using fracking. We will continue to find and develop new reserves while there continues to be demand for them.

    #5278

    MITSCH
    Participant

    Yes, climate change is simple. But the correlation between human activity and climate change is not proven-I remember the eruption of Pinatubo vulcano in the 80’s. It released more carbon in the air, than all humanity in its existance.
    So, I am conservative regarding polution-sulphur is poison, NO is poison, small hard articles from diesel engines are harmful. This is what we should get rid off.

    The other reason for me, to buy electric, is that oil brings devastation to people. People are dying because of oil-driven wars, there are tensions between cultures and religions and this is also pollution-of human mind.
    So whenever I skip visiting the gas station, I contribute something to world peace. I use electric bycycle and scooter in the summer and LPG car in winters.
    Let’s get oil off the position of No.1 business in the world.

    #5279

    Trevor Larkum
    Keymaster

    Mitja,
    I agree with a lot you say, but I think you are mistaken about the correlation between human activity and climate change. Pinatubo, for example, produced significant quantites of sulphur dioxide, but not of carbon dioxide:
    http://volcanoes.usgs.gov/hazards/gas/climate.php
    “all studies to date of global volcanic carbon dioxide emissions indicate that present-day subaerial and submarine volcanoes release less than a percent of the carbon dioxide released currently by human activities”.

    #5280

    MITSCH
    Participant

    Great link, thanks. I was searching for a study like that.
    So I send a link I monitor.
    http://epp.eurostat.ec.europa.eu/tgm/table.do?tab=table&init=1&language=en&pcode=ten00096&plugin=1
    European consuption of petroleum. I think data for 2011 will be gathered by the end of November. Consuption has come down from 500000 to 450000 tons. Hopefully not just because of economic crisis.

    #5281

    MITSCH
    Participant

    As far as carbon and human activity. I’m on the sceptical side. I do not see my breath as carbon producing element 🙂 But I’m willing to accept scientific or statistical data of course. I’m also sceptical because there’s money involved in the cap&trade system. Here’s a great movie.
    http://www.storyofstuff.org/movies-all/story-of-cap-trade/

    #5282

    Electric Ali
    Participant

    Hi Trevor,

    Indeed, there are enormous amounts of hydrocarbons in the ground. How much more will be consumed is the critical issue. Unconventional natural gas production in the USA is a bubble that is about to burst. See

    http://www.resilience.org/stories/2012-10-22/gas-bubble-leaking-about-to-burst

    for top quality comment on this. Business as usual will not be achieved by using fuels that are unconventional. What is needed for business as usual is cheap and abundant oil more than anything else.

    Perhaps the best measure of the quality of an energy source is the concept of “Energy Returned on Energy Invested”. Historically, conventional oil had an ERoEI of 100:1. Nowadays, that’s more like 20:1, but only 10:1 for offshore oil. For conventional natural gas, the ERoEI figure is 15:1. For wind, about 20:1. For nuclear about 10:1.

    Shale oil and shale gas have ERoEI figures in the region of 5:1. Biofuels about 1.5:1. When you get to oil shales, it’s about 1.2:1.

    In order to maintain a complex society, it is estimated that you need an ERoEI of at least 10:1 i.e. more than unconventional sources of oil and gas can provide.

    Best wishes,

    Alister.

    #5283

    MITSCH
    Participant

    Hi Alister
    This is great point. Eroei figures are indeed very important for complex society. Thanks. Tehnical development of course changes data all the time.
    Sorry for skiping again to climate changes. I have a simple question, I don’t have time to find an answer for-perhaps you guys can help me.
    If methan is 20times stronger grenhouse gas than CO2. Isn’t it great that we burn methan-natural gas for energy purposes. Otherwise it would evaporate from Siberian swamps to the atmosphere?

    #5284

    Trevor Larkum
    Keymaster

    That’s a thought provoking movie, Mitja – though I hope things aren’t quite as bad as it makes out. I might research it a bit more and write a post on it.

Viewing 10 posts - 1 through 10 (of 12 total)

You must be logged in to reply to this topic.