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Frankly it was all a set up. In the delightfully romantic setting of an old Cambridge college in springtime, complete with free drinks and delicious food, the organizers of last weeks 'Future of Nature' Conference smiled on conspiratorially as their contrivances to introduce two awkward strangers played out over 3 days.

The strangers in this case were not so much boy-meets-girl as naturalist-meets-geek and what they purportedly had in common was biology. The Future of Nature had been billed as an encounter between the synthetic biology community (biotech scientists practicing an extreme form of genetic engineering that builds artificial organisms) and the conservation biology community who are still trying to hold back the frontier of wildlife destruction for non-engineered nature.

Climate Drift: Geoengineers have a problem. Computer modeling suggests that blocking solar radiation in the temperate zone (to preserve Arctic ice or to forestall massive methane releases) could cool the Northern hemisphere but its impact could also drift South, creating severe climatic disruptions by dampening down Asia’s monsoon while drying out Africa’s Sahel. Not a popular proposition.

Now, geoengineers may hope they have a solution. A new study in Nature Climate Change[i] by the UK Government’s Meteorological Office suggests that some form of solar radiation management could mitigate the conventional vicissitudes of nature. According to the report, volcanic eruptions north of the equator in the 20th century either contributed to – or caused – droughts along the African equator and further South.

In the first two months of 2013, leading advocates of geoengineering have argued variously that researching geoengineering (as a Plan B to GHG emission cuts) is like helping a cancer patient manage pain while seeking a cure; or, that an accelerating gaggle of executive jets circling the equator could spray enough sulphuric acid in the stratosphere to keep the Earth’s thermostat within bounds; or, that a single island state could thumb its nose at the military might of the major powers and geoengineer the planet to its liking. So much lobbying and still months to go before the IPCC delivers its fifth assessment report – with an anticipated treatment of geoengineering.