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The United Kingdom is today better adapted to climate risks as a result of a sustained programme of research completed by the School into the impacts of climate change on ecological, social and infrastructural systems. This work has had significant and continuing impact on the design and implementation of UK (and international) climate adaptation strategies and policies, especially with regard to flooding, the built environment and water and coastal management. Decision-support tools (such as climate scenarios and options appraisal) and direct policy advice produced by the School have been used by numerous public and private sector organisations to inform and guide their adaptation strategies and investments.
Significant climate change is forecast for the Middle East by the end of this century, leading to — amongst other things — greater water scarcity and falling agricultural productivity. LSE research resulted in the development of the Palestinian Authority's first climate change adaptation strategy. This in turn led to the creation of a Palestinian national committee on climate change and, with the implementation of specific recommendations from this research, the strengthening of climate change planning within the Palestinian Authority. The research also shifted regional priorities for the United Nations Development Programme (UNDP), which subsequently included climate change in its 2011-2013 Strategic Framework as a policy priority for development work in the occupied Palestinian territory.
A comparative methodology to assess the impact of climate change in different countries, implemented by Gosling for a report commissioned by the UK Department of Energy and Climate Change (DECC), informed EU negotiations at the 2011 UN climate change conference in Durban, South Africa. The conference concluded with the Durban Platform for Enhanced Action - a `road map' by which global legal agreement on climate change is to be implemented no later than 2015. For the first time, government ministers and their advisers attending an international conference were able to compare the impact of climate change in different countries, including those where scientific institutions have limited research capacity.
Hope's research in developing the PAGE2002 model of climate change has been used extensively by government agencies in the UK and US, as well as the IMF and the international community in order to improve their calculations for global carbon emissions and setting carbon emissions targets. The model was used in the UK government's Eliasch Review, in order to calculate the costs and benefits of actions to reduce global deforestation; by the US Environmental Protection Agency, in order to calculate the marginal impact of one tonne of CO2 emissions; and the IMF, whose calculations using the PAGE2002 model form the basis for their guidance on carbon pricing.
The US government's announcement of an increase in the `social cost of carbon' (SCC) from $24 to $38 a tonne has been made on the basis of research by Richard Tol, of the University of Sussex. Regulation based on the new SCC (a measure of the damage of releasing an additional tonne of carbon into the atmosphere) initially applies to microwave ovens, where it is anticipated to save US consumers billions on their energy bills over coming decades and prevent 38 million tonnes of CO2 emissions. From June 2013, the new SCC applies to any new or revised regulation by any branch of the US government and will eventually affect a wide range of products and investments, including cars, white goods and power plants.
Tol, who works as an adviser to the US Environmental Protection Agency (EPA), has been instrumental in helping the agency to understand the economic impacts of climate change and the methods and assumptions that underpin SCC estimates. The US government's estimates of the SCC are widely used by other decision-makers in the private sector, banks and NGOs and in other countries.
As the realities of climate change have become more widely accepted over the last decade, decision makers have requested projections of future changes and impacts. Founded in 2002, the Centre for Analysis of Time Series (CATS) has conducted research revealing how the limited fidelity of climate models reduces the relevance of cost-benefit style management in this context: actions based on ill-founded projections (including probabilistic projections) can lead to maladaptation and poor policy choice. CATS' conclusions were noted in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) report and led in turn to the toning down of the UK Climate Projections 2009 and the 2012 UK Climate Change Risk Assessment. Members of the insurance sector, energy sector, national security agencies, scientific bodies and governments have modified their approaches to climate risk management as a direct result of understanding CATS' research. Attempts to reinterpret climate model output and design computer experiments for more effective decision support have also resulted.
LSE philosophers have encouraged the Dutch Government to approach sustainability and climate change through experimenting with behavioural policies (rather than through regulation and taxation) and through scenario-based planning (rather than through probabilistic approaches). LSE research on behavioral policies is reflected in a key recommendation to Government by the Dutch Council for the Environment and Infrastructure (RLI) which has affected the way in which behavioural policies concerning sustainability enter the public debate in the Netherlands. LSE research on scenario-based planning is reflected in the Royal Netherlands Meteorological Institute [KNMI] Advisory Board Report entitled "Towards the KNMI's13 Scenarios". The Delta Programme, which is geared towards climate change adaptation (flooding and freshwater) in the Dutch lowlands, has incorporated this scenario-based approach in their planning.
Research at the University of Exeter identifying potential climate tipping points and developing early warning methods for them has changed the framework for climate change discussion. Concepts introduced by Professor Tim Lenton and colleagues have infiltrated into climate change discussions among policy-makers, economists, business leaders, the media, and international social welfare organisations. Thorough analyses of abrupt, high impact, and uncertain probability events, including estimates of their proximity, has informed government debate and influenced policy around the world. It has also prompted the insurance and reinsurance industry to reconsider their risk portfolios and take into account tipping point events.
A novel large-area process-based crop simulation model developed at the University of Reading and published in 2004 has been used to explore how climate change may affect crop production and global food security. The results of Reading's modelling work have been used as evidence to support the case for action on climate change for international agreements and used by the UK Government to inform various areas of policy and, in particular, to help frame its position on climate change at international negotiations. The database and knowledge from this model also informed the development of Reading's innovative web-based tool that locates sites where the climate today is similar to the projected climate in another location - providing insight into potential adaptation practices for crop production in the future by linking to present-day examples. This tool has been used to inform and train farmers and policy-makers in developing countries and has supported policy implementation of the International Treaty on Plant Genetic Resources for Food and Agriculture.
Knowledge of the changing global temperature has contributed to an international political agreement being reached about the over-arching objective of climate change mitigation policies. The School's scientists have made a crucial contribution to one of only three datasets that reveal changes to the world's average temperature over the last 150 years. These data have been central to each of the five Assessment Reports of the UN's Intergovernmental Panel on Climate Change (IPCC), upon which successive rounds of international climate change negotiations relied and which led, in 2009, to the adoption of limiting global warming to 2 degrees Celsius as an agreed international policy goal.