Atmospheric, Oceanic and Planetary Physics
Since the Paris Agreement it seems that there will be the will and the technology to limit future global warming. However, it is not clear that atmospheric CO2 levels will decline fast enough to achieve the Agreement’s target of keeping global-mean warming well below 2 K, let alone its aspiration of 1.5 K. So this may need some “peak-shaving” to cool the planet by about a degree or less for at most a few decades – ideally something rapidly responsive, requiring no new technology, known to work, with no or minor environmental side-effects, & not intrinsically expensive. Creating a long-lasting haze of droplets in the stratosphere to reflect some sunlight fits all these criteria, but just how well could it work? The student will investigate using the Oxford-based project climateprediction.net, which produces uniquely large numbers of simulations of detailed climate models on the computers of volunteers across the world.
Associated Research Streams
climate change, climate sensitivity, climate change feedbacks, general circulation models, radiative transfer