5 June 2016, The Conversation, A hard rain’s gonna fall: deep water for the election campaign. With an unprecedented storm flooding large population centres on Australia’s east coast over the weekend, you would be forgiven for thinking politicians on the campaign trail might pause to reflect on climate change. On the other side of the world, France and much of west and northern Europe are also experiencing extensive floods. They are unprecedented in the speed at which they have deluged cities and communities. Climate change did not over determine these floods in Australia and Europe. But, it has super-charged their intensity and speed in a way that would make them rare in the past. The weather patterns are complex, but the climate change part of the science is less so. Every 1℃ increase in global average temperature means the atmosphere can hold 7% more water vapour. This means that when moist air condenses into rainfall, it is capable of coming down for much longer and in much greater volume than it did in pre-industrial times. Climate change is not about some kind of linear increase in temperature. It is about an increase in energy in the climate system that produces extremes – in drought, storms, wind, heatwaves and floods. Floods are just one of the expressions of the violence of the excess energy. Analysis from the Potsdam Institute for Climate Impact Research, published last year and reported in the New York Times, showed record-breaking rainfall has increased 12% from 1980 to 2010 compared to the previous 80 years. In Europe, the increase was 31%. This is because the northern hemisphere temperature anomalies are so much greater than the south.Read More here
30 May 2016, The Guardian, Homeowners kept in dark about climate change risk to houses, says report. Climate Institute says risk data held by regulators, state and local governments, insurers and banks, but homebuyers and developers do not have access to it. The risk that houses in some areas of Australia are likely to become uninsurable, dilapidated and uninhabitable due to climate change is kept hidden from those building and buying property along Australia’s coasts and in bushfire zones, a Climate Institute report says. The report says there is untapped and unshared data held by regulators, state and local governments, insurers and banks on the level of risk, but that most homebuyers and developers are not told about the data and do not have access to it. The full scale of risk may only be recognised through disaster or damage, or when insurance premiums become unaffordable Climate Institute report. “Even when public authorities, financial institutions and other stakeholders possess information about current and future risk levels, they are sometimes unwilling, and sometimes unable, to share it with all affected parties,” the report released on Monday says. “Thus, foreseeable risks are allowed to perpetuate, and even to grow via new housing builds. The full scale of the risk may only be recognised either through disaster or damage, or when insurance premiums become unaffordable. Any of these events can in turn affect housing values.” The economic costs are high and could ultimately represent a real risk to the financial sector itself, the report says. While insurers, regulators and governments have started to recognise this risk, banks who approve the mortgages for at-risk properties have not yet begun working towards a solution. For example, the report says, banks could integrate the impact of climate into their risk assessment processes, work with other stakeholders in the public, private and civil society sectors to research and develop ways to minimise climate impact risk to housing, and address losses that will occur in an equitable way. Read More here