The May issue of National Geographic magazine features an in-depth article on green roofs. The full article can be read online here.

Spirit of Ireland have been getting a lot of publicity over the last month - check out the group's news page for a list of recent media articles. If you haven't heard, the group's proposals essentially involve storing wind energy in the form of pumped storage reservoirs along the coast.

Check out this video of the Anaconda wave power generator.

Plans for the world's first 'eco city' appear to be dead in the water according to Fred Pearce's excellent Greenwash column in the Guardian.

Guardian green technology Alok Jha correspondent outlines his plans to reduce the energy demand of his terraced London Victorian home in this video.

Interesting news from Toronto, where plans by mayor David Miller to make green roofs mandatory in the city are being criticised by both the construction industry and green roof advocates.

Via Treehugger, architect Cameron Sinclair writes in the Huffington Post :

For the past twenty years the voice of the architecture profession has mainly been drowned out by the computer generated sky-piercing towers of luxury. Year after year the biggest names in architecture tried to out do each other in what is technically feasible...This constant craving to create jewels of desire in the urban fabric left the general public wondering what on earth we do. Now, with the global economy in tailspin, these exercises in object making have come to a crashing halt. For many of us, we couldn't be more thankful...For those of us that work in this arena we are being swamped with requests for help from the camps in the eastern Congo to the hoovervilles in southern California. The desire for well built, sustainable structures is immense and young professionals seeking meaning are finding themselves drawn to providing their expertise to these communities. There is immense opportunity for architects to work in the service of humanity rather awkwardly trying to define it or worse impose a solution on it.

The Japanese government is to spend 15 trillion yen (£100bn, or as I prefer to write it to really let it sink in, £102,000,000,000) on an economic stimulus package focused on green technologies such as electric cars, solar panels and energy saving building materials, according to an article

TreeHugger has posted an interesting slideshow on the best in green design and architecture, including Edouard Francois & Duncan Lewis designed French holidays homes (below) that are designed to fit seemlessly into the surrounding environment, and the green roof on the California Academy of Sciences (bottom).

A quick look through the summary of today's budget measures at budget.gov.ie reveals the following under the list of capital expenditure measures:

Communications, Energy & Natural Resources – €15 million savings, including a reduction of €13 million in the allocation for Sustainable Energy and Energy research programmes.

The Empire State Building is set to get a low carbon makeover, according to the Guardian. The $500m renovation will aim to slash the building's energy consumption by 40 per cent and reduce carbon dioxide emissions by 105,000 metric tonnes a year.

Sustainable Energy Ireland has announced the launch of its annual sustainable energy awards for businesses nationwide. The awards are designed to recognise the achievement of Irish businesses who make an effort to reduce energy demand and improve environmental performance. Categories include leading energy efficiency project, pioneering renewables project, sustainable energy building excellence, and

An interesting discussion on TreeHugger on the merits of various forestry certification programs, including the below photo (courtesy of Heart of Green) that apparently shows both FSC (Forestry Stewarship Council) and SFI (Sustainable Forestry Initiative) certified forests.

A new report from the UK's Green Building Council has recommended a variety of steps that builders, planners and architects can take to enhance biodiversity in the built environment. Among the recommended design features are:

- Nesting bricks built into cavity walls for birds such as swifts and starlings
- Ledges on high buildings that mimic cliff faces for peregrine falcons and other birds of prey
- Careful lighting and roosting boxes under bridges to allow bats to inhabit areas that are usually too bright
- Green roof and walls (explored at length in Construct Ireland last year)

A quick glance through the ideas short-listed in the UK Sustainable Development Commission's 'Breakthrough Ideas' competition reveals a few concepts that have previously been discussed in depth in Construct Ireland.

Following my last post on the debate that broke out in the Guardian about using biochar (just another term for charcoal really) to mitigate climate change, Peter Read became the fourth person to write an article in response to George Monbiot's initial criticism of biochar's proponents.

Fine Gael launched its economic stimulus plan yesterday, an investment programme the party says will create 100,000 jobs within five years. Funds for the programme would be borrowed by semi-state bodies with the aim of delivering commercial returns - and thus not appear on the government's balance sheet.

Yesterday's edition of the Guardian featured a special supplement on greener housing that included features on the first straw bale local authority housing project in the UK, the aesthetics of eco-housing and a potential shortfall in the number of green building professionals in Britain. All of the articles can be accessed here.

An interesting debate has broken out on the Guardian's Comment is Free site over the pros and cons of using charcoal as a means of sequestering carbon, an idea discussed in Construct Ireland by Richard Douthwaite in 2007.

According to today's Guardian , the pioneering Pelamis wave energy project off the coast of Portugal is in trouble after the collapse of majority shareholder Babcock & Brown. The company went in to voluntary administration last week, and its 77 per cent stake in the Pelamis projectis now up for sale.