Showing posts with label climate. Show all posts
Showing posts with label climate. Show all posts

Tuesday, November 30, 2010

Chosing to Feel Hopeful About the UN Climate Conference

I'm sitting tonight in an airport hotel, preparing for an early morning flight to Mexico to attend COP-16, the follow-on international negotiation to last year's Copenhagen conference.

For weeks the commentary in the press has been gloomy on prospects for progress in Cancun. With the changes in the make up of the legislature in the US, prospects for the negotiations overall are widely viewed as dismal.

It's hard to leave home and family for a giant conference center in a resort city for a meeting that seems already been written off by many. There may not be a global treaty at the end of Cancun but, based on the other UN climate conferences I've attended in the past few years, I think there will be progress on several fronts, no matter what the negotiators themselves accomplish.

Deeper ties will be woven, between individuals and groups, especially civil society organizations who send representatives to share and learn. People from different countries, different sectors, and different age groups will be thrown together for these two weeks, based on their shared search for fair and lasting solutions to climate change. The momentum that these groups continue to build and the network they continue to weave is changing the world, in subtle and not always predictable ways.

Scientific and technical exchange will continue. At the edges of the conferences are dozens of 'side events' where groups talk about the research and policy experiments. What's working in Africa to help farmers adapt to changing weather? What does the latest science say about needed reductions in greenhouse gas emissions? What are the latest ideas about how to finance those emissions reductions? Whether the negotiators find any points of a agreement or not, the exchange of ideas will go on, and will lead to new ideas, new collaborations, new experiments.

In the end we do need a global agreement to reduce emissions and the sooner the better. But getting to that agreement is not only a matter of the immediate politics of an agreement. It is also a matter of creating the right conditions, in each country, to allow leaders to lead toward sound climate policy and to allow negotiators to seal a deal to implement it.

Perhaps the negotiations will surprise all of us with a stronger than expected outcome, but if they don't, it makes the rest of the work of Cancun – the learning, the relationship building, the exchange – that much more important. That is the work that prepares the ground for the kind of global agreement we need.

Tuesday, November 23, 2010

Measuring the gap is an essential (but only a first) step toward steering a system

This morning, a new report was  released by the United Nations Environment Program. It represents about half a year of work by dozens of scientists, including me, who were asked by UNEP to assess the expected global greenhouse gas emissions in 2020 if countries fulfill the pledges they made last year in Copenhagen.
 
It was a challenging task for reasons ranging from  lack of clarity about what exactly some pledges meant, to differing historical data sources, to differing projections of future emissions in different parts of the world, and, of course, due to the uncertainties inherent in our imperfect understanding of the climate itself. But given all of the challenges, I think the report does a good job of giving us a snapshot in time of the best scientific answer to a complex question: if we desire to limit temperature increase to 2°C over pre-industrial temperatures, do the Copenhagen Accord pledges go far enough? You can read the report here, if you want all the details, but the bottom line answer is: no, there's a gap between where we are headed and where we need to head. We filled about 60% of the gap, and have another 40% of the way to go.

As someone who has made a career of studying systems, I know that registering a gap is an essential step in self-regulating feedback. Whether it is the drop in blood sugar that sends an animal in search of food, or the increase in body temperature that leads to sweating, all self-regulating systems keep themselves in balance by measuring the gap between where some parameter is and where it needs to be, and reacting to the difference with corrective action.

It could be that the Emissions Gap report is, like the gap detected by a thermostat that turns on a furnace, a signal that spurs self-correcting, balancing action, in this case global resolve to reduce greenhouse gas emissions.

But, not every gap that can be detected by a system triggers self-corrective feedback. My mentor, the systems analyst, Donella Meadows, once said jokingly about the increase in standardized testing in schools: "trying to improve learning by increasing testing, is like trying to cure a fever by taking your temperature." Measuring a gap, without the determination to act on it, is unlikely to change a system.

The Emissions Gap report is, like a test, or a thermometer, an effort to measure the size of a gap, the amount of deviation of a system from healthy conditions. But the assessment of the gap alone can't bring the system into balance any more than a thermostat can warm a room if it is disconnected from the furnace.

A gap is an essential part of any self-corrective feedback loop, but only a part, a trigger. To create change, there must be something to act on the news of the gap.

So where might we find the rest of the self-corrective feedback loop that seems to be struggling to emerge as humanity grapples with it's overshoot of the planet's limits?

There's nowhere for it to lie, really, except in us. Individual human beings, from environment ministers to ordinary citizens. In the everyday personal choices we make, and more importantly, in our coming together to change the prices of energy, the rewards for efficiency, the design of cities, and the vision of a good life for an individual or a whole society. 

The good news of the emissions gap report is that the gap could be closed, brought to zero, given reasonable assumptions about technological progress and investment and the pace of change.

The hours of thinking, analysis and editing will seem well worth it, if the news of the Emissions Gap helps, in small ways or large ones, to trigger the the systemic self-corrective action we know is needed to keep the climate with in safe bounds.

Thursday, August 12, 2010

Balance: On the farm and in the atmosphere

Hazel, resting after her eighth calving.
Doing chores in the barn yesterday morning, my younger daughter and I paused for a moment to enjoy the sight of an hours-old calf.

Leaning over his pen, watching the little guy work on his first bottle,  I chatted with Kerry, owner and manager of the herd of Jersey cows here, about the health of his mother Hazel following his birth.

I noticed how often Kerry used the word balance in our short conversation. The health of Hazel today was related to the balance of calcium in her blood, bones and milk, which in turn depended upon the balance of nutrients in the pasture, the hay, and the grain she ate in weeks and months past. Managing a cow's health – in fact managing the whole of a farm – is structured around attending to balance, and acting swiftly to keep an imbalance from growing into a crisis.

 Of course, balance is a critical concept in the climate arena as well: it has long been true that emissions of greenhouse gasses are far out of balance with their removals to oceans and forests. On a farm an imbalance in the metabolism of a single animal can lead to sudden crisis and even death of the animal. The time between imbalance and disaster is a matter of hours, or maybe even minutes. Even in the slower metabolism of the soil, imbalance leads to poor yields in season or two. 

Unfortunately for all of us, in the climate system, the delay between an imbalance in the metabolism of the planet and the arrival of serious consequences is measured in decades, maybe even centuries.

Kerry is smart, hardworking, observant and dedicated. But so are most of the people I've meet who work in the world of international climate policy. Acting swiftly and effectively to restore balance is easier when the consequences of imbalance are strong and direct, and harder when the feedback is slow and initially weak.

That's a classic finding of system dynamics and at least one reason that explains why human beings, if they put their minds and hearts to it, can do a very good job at maintaining the many balances within a farm ecosystem, and why as a global species, we aren't doing such a good job attending to planetary imbalances.

From computer simulations to sophisticated policy instruments, there are all sorts of tools that could help climate policy makers do a better job, but today, with the conversation in the barn fresh in my mind,  I'm wishing for an even simpler shift, one that would help us see the Earth and its climate as alive and dynamic, just like an animal in our care or the body of a loved one - capable of beauty and productivity and longevity, but only when the conditions are right and only when life-giving balance has been maintained.