World Food Programme report on the state of the science on what climate change means for hunger, plus policy recommendations. Authored by IPCC Impacts Chair Martin Parry with Mark Rosengrant, Tim Wheeler and Global Dashboard’s Alex Evans (December 2009)

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The World Food Programme has just published a new report (pdf; also Reuters coverage here) on how climate change will affect hunger, which both summarises the state of scientific knowledge on the issue and sets out a policy agenda to tackle it.  Key messages:

- By 2050, the number of people at risk of hunger because of climate change will be 10 to 20 per cent higher than it would have been without climate change.

- The number of malnourished children is expected to increase by 24 million - 21 per cent higher than without climate change.

- Sub-Saharan Africa will be worst affected, with the semi-arid regions either side of the equator hit hardest of all.

- But here’s the good news: if we get the policies right – on mitigation and on adaptation – the increase in the number of hungry people by 2050 could be limited to just 5% (which would actually be a substantial reduction in proportionate terms, given that population is projected to rise by 50% over the same period).

The lead author for the report was Martin Parry, the Chair of IPCC Working Group 2 (the part of the Panel that looks at impacts). I was one of three other authors, and wrote the part of the report covering policy responses.

I’ve said before that the easing of oil and food prices that followed the credit crunch and the global downturn gave policymakers a window of opportunity to take preventive action on scarcity issues. Now, alas, I think that window is starting to close – without their having done much about it.

To see why, first take a look at what the oil price has been doing over the last year (Brent crude futures, $/barrel; h/t BBC):

Then, put that against the longer term background of what’s been happening since 2000 (slightly older data here, via Mongabay, but usefully puts the BBC graph above in context):

As the second graph shows, today’s level of just under $80 per barrel already brings us back to where we were in around July 2007 – and that’s during a still shaky recovery from what’s generally agreed to have been the worst global recession since the early 1930s.

This is a striking rebound in such weak economic conditions – and calls to mind the consistent warnings from the IEA over the past 18 months that the collapse in investment in new supply during the financial crisis and subsequent downturn has set the stage for a new oil price crunch as soon as recovery gets underway (not to mention the fact that IEA’s chief economist thinks we’re looking at peak oil as soon as 2020).

With the oil price headed upwards, food prices can be expected to follow – because higher oil prices make biofuels more attractive, and raise the prices of on-farm energy use, fertilisers, transportation, distribution and various other elements of our energy-intensive food supply chains.

Sure enough, if we take a look at the latest FAO food price index, we find that it too has been quietly heading upwards over the last few months – and is now likewise back at where it was in July 2007. At that point, of course, the food spike was already well underway, with the tortilla riots in Mexico City that served as a wake-up call for many policymakers having come almost six months earlier.

On top of this, remember the really key point that the fall in food prices that took place during the global downturn gave minimal respite to the world’s poorest people – precisely because even as prices fell, they were also getting hammered themselves by the downturn.

The starkest indication of that is in the global total of undernourished people (shown here in a graph from the FT); when you realise that we haven’t just lost the progress of the last few years, but are in far worse shape that at any time since the last 60s, you start to see just what a catastrophe the combination of  food / fuel price spike followed by global downturn has been for development:

As I’ve argued in numerous previous posts, we were never out of the woods on the food / fuel pincer movement; it was the collapse in prices following the credit crunch that was the blip, not the price spike that preceded it. And what’s most frustrating now is the extent to which policymakers have frittered away the chance we had to get onto a more secure footing.

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