Tag Archives: environment

Kids Leave Dirty Footprints

Want to reduce your emissions? Forget about the gas guzzler, holidaying at home, or buying local produce; cut your “carbon legacy” and have fewer children, says new research.

people

In recent weeks I’ve attended two public discussions dealing with the big-picture issues of sustainability and balancing development with conservation, and neither of them did much to allay my fears or educate me about the threats associated with population growth.

I may be joining the wrong events, but it seems all too easy to miss population off the formal agenda, or leave it to a brave audience member to raise the issue at question time – when it can be scooted over or dismissed with a glib reply.  A popular counter to worries over population growth in developed countries – at home as it were – is to state that growth is mainly happening in the developing world, where per capita consumption is relatively low.  For me, that seems to ignore the medium term consumption aspirations of developing countries (look at how fast China has moved) and underplays the ratio of the impact of an individual’s consumption between the developed and developing worlds.  But I suspect most of us don’t really know what to think, and lack meaningful data to work it out for ourselves.

Now that position has improved somewhat, with the publishing this month of a formal analysis of these very issues by researchers from Oregon State University.  Murtaugh’s and Schlax’s paper: ‘Reproduction and the carbon legacy of individuals‘ is published in the journal Global Environmental Change, and also  downloadable as a pdf here.  In the authors own words:

Here we estimate the extra emissions of fossil carbon dioxide that an average individual causes when he or she chooses to have children. The summed emissions of a person’s descendants, weighted by their relatedness to him, may far exceed the lifetime emissions produced by the original parent.

It’s more usual to work out an individual lifetime’s worth of carbon footprint.  But in the Oregon study, a parent is instantly given the burden of half their child’s carbon impact, and a quarter of the carbon impact from their child’s prospective child; and so forth.  When the numbers are worked through, and comparisons are made between the developed and developing world, it’s apparent that not having that extra kid is a great way to save the planet. According to the authors’ data, the impact of that decision far outweighs that of other good citizen actions – like downsizing the family car.  The figures I find most provocative are the comparisons of the impact of children born in different countries.  Take the USA and Bangladesh for example: I’d assumed just on a gut feeling that a US child’s carbon footprint would be 20 or 30 times that of a child born in Bangladesh.  The figures in the new paper, with the children’s decendents accounted for, put the ratio at 168:1 – equivalent to average carbon emissions of 56t and 9441t for the Bangladesh and US cases respectively.

The carbon reduction figures presented for the various lifestyle changes we can make, and calculated over an 80 year period, range from 17 metric tonnes CO2 saved by recycling materials, to 148 metric tonnes by increasing automobile gas mileage from 20 to 30 mpg.  Those numbers can be compared with the 9441t of emissions that could be avoided by not having an extra child.

This paper is written in the spirit of presenting data as an input for informed discussion.  The authors don’t take a moral position on human rights and population control – that’s for the politicians with the people to sort out.  And it’s not too far a stretch to make the analogy between this situation and  that which existed when the global warming debate was put on a more data-rich, objective, footing by the issuing of the Stern Report in 2006.  However the detail and assumptions in this work may be criticised, as surely they will be, it’s good to see some quantification around this complex piece of the sustainability jigsaw.

Reference:

Paul A. Murtaugh a,*, Michael G. Schlax b ‘Reproduction and the carbon legacies of individuals’, Global Environmental Change 19 (2009) 14–20

(Originally posted at conservationtoday.org)

 

Also of Interest

Is population growth out of control (BBC September 2013)

The Business of Conservation

Conservation, business, and the Olive Ridley Turtle.  This article was originally published at ConservationToday.Org

olive-ridley-turtle
Olive Ridley Turtle (c) itsnature.org

It’s almost exactly a year since I left my job as director for procurement strategy and development at Corus, the Anglo-Dutch steel business owned by India’sTata Steel Group.  I  have happy memories of meeting Indian colleagues in Kolkota and visiting Tata’s operations at Jamshedpur.  So it’s been especially disappointing to watch over the year a progressive sickening of relations between Tata Steel, the International Union for the Conservation of Nature (IUCN), and Greenpeace, over the issue of the Olive Ridley Turtle.

Briefly, the case concerns the potential impact on the turtles beaching behaviour of the construction, by a Tata JV company, of a deep water port at Dhamra, on India’s Bengal coast. The case is complex and unresolved to the satisfaction of all parties, particularly Greenpeace, who have criticised the nature of the IUCN’s engagement with Tata. I don’t plan to dissect the case here; starting points for that can be found at these sites: IUCN press release (2008)Dhamra Port Company StatementGreenpeace.

Rather, the case prompts reflection on  the broader relationship between business and the environment – including conservation.  My message is that a business-like and emotion-free relationship is requisite, and that negative criticisms (founded or not) of individual involvements by organisations like the IUCN should not distract from the essential wisdom of their philosophy for business engagement.

As Mohammed Valli Moosa, President of the IUCN has said:

We  are living in an era of global economic expansion.  The private sector is a major player in this period of unprecedented development.  Business has a responsibility to the global environment.  Business has to do more than just avoid prosecution.”

(source: Partnerships for the Planet)

Moosa here is not showing anti-business sentiment; indeed, he questions the way the conservation movement has traditionally engaged with business, as in this report by the New York Times on the occasion of the 2008 World Conservation Congress.

Part of the IUCN’s role is to provide a forum where traditionally divergent views and stakeholders can find solutions that don’t reject the market, but work with it, and has established the Business and Biodiversity Programme (BBP) to support its goals.

The IUCN helps businesses like Shell, Holcim, and Tata to formulate best practice standards and improved conservation policies.  The approach is consciously ‘pragmatic’ (IUCN’s term).  Dialogue does not mean an absence of criticism; the IUCN have challenged Shell on an energy  strategy that focuses on biofuels over wind and solar (link to report here).   On the Dhamra project, the IUCN have in an agreement with Tata advised on the possible impact and mitigation of environmental concerns, although not to the satisfaction, particularly, of Greenpeace.  References in the various chat forums around the case allude to ‘greenwashing’ and abandonment of the ‘precautionary principle’ – implying some kind of sell-out to big business.

Engagement with business and business management principles is far from a sell-out.  By attaching an economic value to the social cost of environmental impact, Nicolas Stern’s report on climate change caught the attention of the political and business world like never before.  Businesses are coming to realise energy efficiencies and GHG emissions reduction can be achieved profitably through technology and improved corporate housekeeping.  The motivation for these actions is becoming less a response to protest and more a simple case of delivering to shareholder approved corporate plans; manifest not only in the glossy pages of corporate social responsibility or environmental reports, but embedded in the financial plans owned by company CFOs.  It is in the conservationists interest as well that businesses make this mind-set internally sustainable, and should be encouraging businesses to include environmental expertise on their boards – maybe in a non-executive director capacity.   Governments have a critical role in removing obfuscating sudsidies and making transparent the true costs of commodities and supply chains to businesses and private individuals.

Tension between business and conservationist goals will not reduce further until a true costing of impacts is agreed and worked to.  As that develops, we must guard against the equation being muddied by subjective judgements and emotion.  In the meantime, a degree of compromise is requisite on both sides, and a recognition that more can be achieved as a team, even one working under constructive tension.

‘The Open Ground’ – Conservation Event in London

Some of you may know that in addition to Zoonomian, I’m a contributing editor at ConservationToday.org, the conservation group run by post-graduate students from Imperial College under the leadership of Will Pearse.

Open Ground - come along on 20th June
Open Ground – come along on 20th June

It’s therefore a great pleasure to introduce this first one day conference organised by ConservationToday, and encourage you to go along.

The Open Ground conference will explore the common ground between the wider arts and sciences in conservation – taking place on the 20th of June in London.

Featuring:

John Fa – Director of conservation science at the Durrell Wildlife Conservation Trust

Armand Leroi – Professor at Imperial College London and BBC presenter of ‘Darwin’s Lost Voyage’

Sam Turvey – involved with the Yangtze River Dolphin, ZSL

Ruth Padel – former Professor of Poetry at Oxford and prize-winning author of ‘Darwin: a life in poems’

…and many more!

UPDATE Feb 2010

The audio of proceedings is here.

Earth Hour – Consciousness Raised? (a bit?)

Well that’s the World Wildlife Fund’s ‘Earth Hour’ over and done with for another year.

earth-hour
(Artwork - Gareth)

At least that’s the cynic’s (realists?) view of this annual attempt to get the world’s lights switched off for an hour, on a rolling cycle from 8.30 – 9.30 pm, across the globe.   It’s just happened in the UK.

I’ve heard the arguments for and against what some see as a ‘stunt’.   I support it all the same.

Whatever else the organisers intended, events like this raise consciousness in those they touch – even if that excludes the worst offenders.

Against that is the view that one-off gestures make people feel good at the time, but that real benefit is lost in ‘business as usual’ during the year.  I’ve not seen any statistics, so won’t comment; maybe the WWF have done the research?

But I can’t get excited about criticism that people might actually use more power during the ‘lights out’ hour.   On balance, I hope there’s a reduction, but don’t see it as a huge deal if not.   I feel guiltier when I’m using power.

Events like Earth Hour raise consciousness; an essential ingredient in any discussion on global warming, religion, famine, conservation, or any number of contentious science-related issues.    The Earth Hour critics are right that you can’t force people to act, but you can nudge them in the right direction.   This is a preparing of the ground, warming people up gently so they don’t melt when faced with the full real cost of energy.   And rather than giving the impression that turning out lights will save the planet, Earth Hour might just spur some to follow up on the detail of the broader picture.

Next year maybe we need the ‘leave the X5 in the garage for a month stunt’, or the ‘cancel one of the two long-haul hols. stunt’?   A sustainable planet will require fundamental life-style changes –  to paraphrase Sir David King (again, sorry) at this year’s Darwin Day lecture: things won’t really sort themselves out until girls stop fancying blokes in Ferraris…… (go figure).

I did hugely exciting stuff in my dark hour.  First, I checked out the appartment building and found the lighting pattern pretty much as I remember it from any other Saturday night (no control – my not being scientific, sad, or both, enough to photograph the place over the two previous weeks).   Then to the supermarket with my re-useable plastic bag (by now I’m visibly radiating good-citizenship with my raised consciousness before me), arriving home 20 minutes early and requiring the PC be prematurely re-activated as a light source.

In that 20 minutes, I did the back-of-fag-packet calculation that a billion people (the WWF target) turning off a 100W  bulb = 100,000 MW or 200 power-stations at 500MW  or 100 at 1000MW.   My personal saving was much less than 100W, at  22W  for the 2 x 11W  fluorescent lamps we run in the lounge which, as a fraction of the power used by the 300W  TV  and 150W PC  found in most homes, supports the critics numerical case.   But if you think that’s what it’s about,  you’re missing the point.

Anyhow, off to phone my other half who’s in the USA at the mo’ – need to get those double Earth Hour Brownie Points.

The Best Environmental Science On TV

On Monday, I joined an awards evening celebrating the best environmental science and technology productions made for European television. The categories were: drama, general programmng, new media, and an extra jury prize for exceptional content.

The MIDAS awards were hosted by PAWS – as the name suggests, a group promoting the public awareness of science. The evening also included a keynote address by Sir David King – until recently the UK’s Chief Scientific advisor, and a related panel discussion on climate change. I’ll share the messages from that in a future post.

On to the award winners. They won’t mean much outside Europe, but at least you can see the themes that are popular.

Best drama award went to the BBC‘s ‘Burn Up’ – which anticipates the lead up to Kyoto 2 in 2009 with a volatile mix of politics, science and big oil.

BBC’s Trailer to Burn Up

Best General Programming went to an edition of the Belgian VRT series Fata Morgana, about getting local people involved in environmental challenges. For four years I lived a stone’s throw away from the VRT TV tower in Brussels and, watching the clip, found the local flavour of this type of programming ‘very Belgian’ – meant in the most complimentary possible way!

Best New Media award went to Germany’s ZDF Interactive for their ‘Consequences of Climate Change’ – a truly interactive production in which viewers can explore the effect of drought and floods by keying in various parameters. This was an excellent use of new media I’m sure we will see much more of. If I can get a link to a clip or screenshots of this, I’ll post it.

The jury special prize went to The Netherland’s VPRO Television and ‘Waste equals Food’, concerned with cradle to grave understanding of products’ impacts on the environment. Examples included Nike’s design of running shoes for optimised recycling, the soles typically reappearing in sports court surfaces.

CalTech’s Death-Star Insight on Global Warming

WONDERING what the world will look like when the heat is on?

A newly discovered micro-fossil of an organism that lived during a previous global warming is helping researchers understand how aquatic life could adapt to the warmer, lower oxygen, waters that may accompany radical environmental transformations.

"Magnetic Death Star" - CalTech image

Dubbed the “Magnetic Death Star”, due to its round and spiky magnetite structure, the fossil was found among sediment deposited 55 million years ago during the Paleocene-Eocene Thermal Maximum (PETM), when surging atmospheric carbon drove temperatures 9 degrees Fahrenheit higher. CalTech and McGill University workers believe the single-celled eukaryote evolved during the PETM, only to be out-competed and disappear again when conditions cooled off (Proceedings of the National Academy of Science, DOI:10.1073 / pnas.0803634105).

Sarah Palin? – Well, Apparently……..

Originally, I wanted to draw attention here to Sarah Palin’s environmental credentials, lest the topic be short-changed amidst the lively discussion of her religious beliefs. This article by Britt Collins in the Guardian was the spur; liberally illustrated with quotes from Palin and others, it includes this passage – reproduced verbatim in Collins’ contextual frame with the quote attributed to Palin bolded:

She then wrote a piece for the New York Times, saying that these “magnificent cuddly white bears are doing just fine and don’t need our protection. If the ice melts, they’ll adapt to living on land”. That is a contention most scientists found reckless, given that polar bears have shown little ability to feed on land.

Endangered

But here I came unstuck, the issue being I can’t find the quote in the cited reference (New York Times). I found this article by Palin, titled ‘Bearing Up’, and covering the right topic – but the quote’s not there. Maybe it turns up eventually, but it’s an emotive quotation, not to be spread lightly, even on a blog with Zoonomian’s embryonic circulation. So while I’m not a Palin fan, and find her potential career progression deeply worrying, that’s not the point here.

It turns out the quote has itself been quoted on several blogs concerned with climate change, conservation, or just anti-Palin; sometimes there’s a reference to the Guardian – sometimes not; but all dated after the Guardian posting.

I guess the issue is how comfortable we are in relaying information which can’t be verified – at least in the short term, even when it derives from a normally trustworthy intermediary and supports our own motives.