Showing posts with label Global Warming. Show all posts
Showing posts with label Global Warming. Show all posts

Monday, 21 May 2012

Arctic melt releasing ancient methane

Scientists have identified thousands of sites in the Arctic where methane that has been stored for many millennia is bubbling into the atmosphere.This article is a good link to Edexcel Unit 1 World at Risk to show the possible impacts of global warming and positive feedback mechanisms...

Graph of methane levels

http://www.bbc.co.uk/news/science-environment-18120093

Thursday, 17 May 2012

Ecological footprint

An ecological footprint measures the total amount of land and resources used, it includes your carbon footprint but goes further.See how your choices affect the environment and whether you are living beyond the capacity of the planet by clicking here - http://www.ecologicalfootprint.com/

The Economist provdies an excellent spatial overview:


Sunday, 29 April 2012

Brazil's new forest law: short term economic gains over long term environmental security?


A\member of Congress protests as the Chamber of Deputies holds a plenary vote on the forest code 25 April 2012Despite the countless geographical case studies, the radical environmental groups and lobbyists and a global increased environmental awareness, it saddens me to read that yet another emerging superpower, one of the BRICs nonetheless, has chosen to put economics over environmental protection.  After over a year of political wrangling Brazil's government have passed a law ( 247-184) which eases rules on how much land farmers must preserve as forest. Now, i know it is easy for me with my Western perspective to sit here an chastise the Brazilian government for following the lead of the hegemonic USA and post industrial attitude of China, but having been and for a short timed lived in the Amazonian rain forest i feel it will be the TNC loggers rather than the indigenous tribes who will reap the rewards.


Once again this issue touches upon the wider themes of how societies (and cultures) view and subsequently protect the environment. With the law now passed it will be interesting, yet very sad to watch how deforestataion rates possibly increase even more over the coming decade and taking a particular morbid line i wonder how many more incidents of this will occur: Loggers 'burned Amazon tribe girl alive'

Graphic showing Amazon deforestation

Sunday, 5 February 2012

Different ways of measuring tectonic events...

Ok say ask any budding geographer how do you measure tectonic events and they will probably quote: Richter scale, Fujitsu scale, may be the Mercalli or even the VEI...but are some of these too out of date - according to topical popular science programme like QI they are!

Tectonic recording and measurements now focus and refer to the following:

VEI
Moment magnitude scale
Sieberg-Ambraseys Tsunami Intensity Scale
Mercalli

Interesting..no..?

Finally some common sense...?

Is another  national white elephant about to fall to the axe of common sense? I for one hope so as I am fed up how the debate on alternative energy, especially WIND, has droned on in background like the sound produced from the very turbines themselves!

Alternatives in principle are good (but which alternatives) and yes wind can make a positve contribution in specific geographic areas, but for the masses - simply no!

http://www.bbc.co.uk/news/uk-politics-16893018

Thursday, 26 January 2012

First report on UK climate impact


Headlines for possible negative outcomes, assuming nothing is done in preparation, include:
  • Hotter summers leading to between 580-5900 deaths above the average per year by the 2050s.
  • Water shortages in the north, south and east of England, especially the Thames Valley area by the 2080s.
  • Increased damage from flooding could cost between £2.1bn-£12bn by the 2080s.
The report's positive findings include:
  • The melting of Arctic sea ice opening shorter shipping routes to Asia.
  • Milder winters leading to 3,900-24,000 fewer premature deaths by the 2050s, significantly more than those forecast to die as a result of hot weather.
  • Wheat yields to increase by 40-140% and sugar beet yields by 20-70% because of longer growing seasons by the 2050s.

Monday, 12 December 2011

Durban: an overview

So, they did it, or did they? Ministers worked through the night in a desperate bid to salvage a new global climate deal to tackle climate change at the conference in Africa.

In a week in which India, China and the US had consistently taken a hard line in opposition to proposals for action to curb global emissions and continue/adhere to the Kyoto legacy, it appears that the strong sense of urgency from other nations has brought them round to a legally binding commitment.

So in it's simplest form Durban achieved it's goal - to bring the key polluters, players and stakeholders round a table and agree on a set agenda to tackle global climate change - the barometer of success, as ever, will be who will stick to it 6months, 1year and 5 years down the line...

Check out the following websites and blogs to get involved and offer your insight:
Podcast:http://www.scientificamerican.com/podcast/podcasts.cfm?type=60-second-earth

Thursday, 8 December 2011

Why the UN climate change summit is our last chance to save the world


U.N. Secretary-General Ban Ki-moon, climate change summit

A little bit sensationalist for the metro but it is not too bad - aside from the doom and gloom and catchy headlines it turns out that there is a reasonable summary and if you click website there are some excellent links to more recent stories...http://www.metro.co.uk/news/newsfocus/884202-why-the-un-climate-change-summit-is-our-last-chance-to-save-the-world

Wednesday, 7 December 2011

Poorer countries overtake rich world's consumption carbon footprint

The financial crisis of 2009 saw the developing world's carbon emissions from consumption shoot past the developed world's years earlier than expected, new research shows...
Carbon emissions after the recession - graph
How emissions have bounced back after economic crisises. Source: Nature Climate Change

The carbon footprint from consumption in the developing world has overtaken that of the developed world, according to research published on Monday. The change happened years earlier than expected due to the fact that the developing world's emissions were largely unaffected by the global financial crisis.
Emissions within the borders of developing countries outstripped those emitted in developed countries (as defined by the Kyoto Protocol's 'Annex B') in around 2005. But the rich world still accounted for the majority of the carbon footprint of consumption due to the goods it imports from China and other developing economies.

Worldwide Carbon Emissions No Longer Dropping — Is Anyone Surprised?

Check out the blog discussion and links on the Freakonomics website - it is all there!

Accountability is a vital weapon in the battle against climate change


This is a story of losing battles: our planet losing battles to climate change and corruption. It is a story that will become all too familiar in years to come, unless world leaders take action.
There is strong consensus that someone has to pay to reduce the emissions responsible for climate disasters like flooding and rising sea levels. By 2020, an annual $100bn is expected to flow to green technology, defences such as sea walls, and to helping people forced to abandon their homes.Any climate agreement, and any new climate money, must give citizens a voice in selecting which projects to fund, allow them to monitor budgets, and show them who is responsible for making sure the work takes place.When the agreed work is not carried out, citizens must be able to sound the alarm through hotlines or advice centres. Investing in accountability now will save money and lives further down the line.
The alternative is allowing resources to be hijacked and spending decisions to be made behind closed doors; permitting contracts to be given out to companies without the scrutiny that prevents bid-rigging, and work to be done without quality control or regular audits.This is what can happen when unprecedented sums of money take a confused journey from international organisations, each with their own rules on reporting, through government departments to private companies. Sometimes we have no way of knowing what was spent and why, and who is ultimately accountable for a project's success or failure. Leaders in Durban can start with the proposed green climate fund, which should distribute the bulk of all climate money. The fund already promises to allow citizen consultations, independent monitoring and corruption investigations. These are great advances, but it remains to be seen whether leaders at the climate summit vote for a fund that hears and responds to people on the ground.
We all fear what the consequences of taking too long to tackle climate change will be for our children and grandchildren. In Bangladesh, they already know the consequences. They live them every day: in ruined crops and flooded homes, in the saturated ground under their feet.It is not too late to help people who are already feeling the effects of climate change, however. And the place to start is Durban this week. If leaders act, and people are empowered to hold their leaders to account, the flood defences will be high and strong enough to keep out the water.

Another stake in the heart of climate change and targets

Brazil, the hope for future sustainable forestry management has dealt a severe and arguably deathly blow to it's sustainable forestry conservation strategy with the new forest code, recently approved by the Senate, meaning that the buffer zone will be reduced, allowing more deforestation to take place.

In a world when there are desperate calls to preserve our environment it appears that one of the country's with the largest pristine forested areas is like the rest of the world putting the economy over the environment - what would Kuznet say!

Amazon rainforest

Click here for the full story.

French Alpine glaciers in retreat

More evidence of global warming and the impacts of increased GHGs emissions or is it all just part of natural climate change...whatever your thoughts the retreat of glaciers globally over the past 60years has been unprecedented!

Click here

Glacier de la Meije (Ecrins massif)

Thursday, 1 December 2011

Local action: Switch off fortnight

As global climate talks like Durban and Copenhagen continue to simply talk a lot of hot air with no binding action and big business holding their hands in their pockets trying to scrabble around for a few coppers to keep the economy going at whatever cost, it looks increasingly likely that it is up to individual to mitigate the effects of climate change.

Pleasingly, the MTS school Sustainability Committee are part of 'Switch off Fortnight' and tomorrow the majority of teachers and support staff will reduce their energy consumption! It is similar to shutdown day - http://www.shutdownday.org/, and it is a step in the right direction by taking the initiative and taking responsibility.

Kyoto protocol may suffer fate of Julius Caesar at Durban climate talks


Kyoto was the first global agreement towards establishing climate targets and with the exception of the USA and despite a few grumbles it gave hope and set a precedent before the millennium. Sadly as we move towards 2012 it appears that many countries have just paid it lip service, with Canada being the most recent country to pull out. The article by the guardian looks at whether Kyoto may suffer the same fate of Julius Caesar...
http://www.guardian.co.uk/environment/blog/2011/nov/29/kyoto-protocol-julius-caesar-durban

Information on Durban & past climate conferences:
http://news.bbc.co.uk/1/hi/sci/tech/8673828.stm
http://www.bbc.co.uk/news/science-environment-15698183
http://www.newscientist.com/article/dn21219-durban--your-guide-to-the-latest-vital-climate-summit.html?DCMP=OTC-rss&nsref=environment
http://news.bbc.co.uk/1/hi/sci/tech/8854653.stm

Sunday, 27 November 2011

Good news? Or just more confusion and a further step into the grey area...

In the news today, covered by both the Economist and the New Scientist is the news that the climate is less sensitive to carbon dioxide than previously thought - this seems a good thing; of course it does in principle. This means that the IPCC's last estimate of climate sensitivity (which measures the amount of warming that can eventually be expected to follow a doubling in the atmospheric concentration of carbon dioxide) is now being revised to 1.7 to 2.6 degrees as opposed to 2.6 degrees. No doubt though, this could either be a blip or will be heavily contested but it provides healthy debate which is ultimately the purpose of science.


Check out the more in-depth articles here:

Thursday, 24 November 2011

Kenya's Masai and the Impact of Climate Change


Kenya's Masai traditions threatened by climate change

Masai living in Kojiado district, near the Tanzanian border, are finding traditional cattle herding harder because the weather is getting hotter and the rain more unpredictable. Pasture is becoming harder to find, so many are diversifying to grow crops as well or turning to farming full-time. They are also working with traditional farmers to ensure that both lifestyles can share the resources available without encroaching on each other's survival. Sending children to school is also becoming a priority so that they are better equipped for their changing world.
What a fantastic picture that embraces the Technological Fix!

Climate gate part 2

Once again, the debate has been rekindled as hackers have leaked snippets of emails from climate scientists once more.  Despite the breach in privacy and the obvious distortion, to some extent, of the context and purpose of statements, i do feel climate scientists should be more transparent and open - to some extent they should do more to actively and publicly practice what they preach and do more to reduce their carbon footprint!

See links below to form your own opinion:

Other errors from the IPCC this time:

Tianjin Eco-City In China: The Future Of Urban Development?

One of the green movement's major coup's must be the the eco-city. Branded often as green cities and environmentally friendly it is no surprise that China has cottoned onto this concept with it's design & plan for, of course, the ultimate eco-city  - Tianjin.




Questions:

To what extent are eco-cities a model for future urban growth? 
Are they sustainable? If so how?
And is this a concept which could catch on elsewhere?

Further links: