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Since geoengineering has gained a lot of attention from the media recently, it is interesting to look at how aerosols from industry have influenced climate. Strange variations in temperature were experienced in the US from the years 1970-1990 where parts of the country, such as Arkansas and Missouri, were nearly 1C cooler than immediately surrounding regions and 0.7C cooler in parts of the Midwest and Mid-Atlantic.
At first this was thought to have occurred due to natural weather patterns, but recent research has shown that this ‘warming hole’ effect over parts of the US was actually due to the presence of sulphate aerosols in the atmosphere that originated mostly from coal-fired power plants. Read more
This podcast from ROBUST features Dr Karen Johnson, one of the leaders of the project. In this instalment, Karen introduces different aspects of the project including how to remediate brownfield land using recycled minerals known as manganese oxides left from the water treatment industry and other sources.
This is part three of the ROBUST podcast series. Parts one and two are available here.