YOKOHAMA, Japan, 31 March – The latest Working Group report of the Intergovernmental Panel on Climate Change (IPCC) confirms that the effects of climate change are being felt on all continents and across all oceans.
It also confirms that in many parts of the world, we are ill-prepared to manage the risks associated with the changing climate.
At the same time, the report concludes there are opportunities available to respond to these risks, although they will be difficult to manage in areas with high levels of warming.
The report, titled Climate Change 2014: Impacts, Adaptation, and Vulnerability, was prepared by Working Group II of the IPCC, and details the impacts of climate change to date and future risks.
Rajendra Pachauri, Chair of the IPCC, said: “The Working Group II report is another important step forward in our understanding of how to reduce and manage the risks of climate change. Along with the reports from Working Group I and Working Group III, it provides a conceptual map of not only the essential features of the climate challenge but the options for solutions.”
The Working Group I report was released in September 2013, and the Working Group III report will be released in April 2014. The IPCC Fifth Assessment Report cycle concludes with the publication of its Synthesis Report in October 2014.
A total of 309 coordinating lead authors, lead authors, and review editors, drawn from 70 countries, were selected to produce the Working Group II report. They enlisted the help of 436 contributing authors, and a total of 1,729 expert and government reviewers.
The report concludes that responding to climate change involves making choices about managing the risks of a changing world, and some of these choices may prove painful, though necessary.
The report identifies vulnerable people, industries, and ecosystems around the world. It finds that risk from a changing climate comes from vulnerability (lack of preparedness) and exposure (people or assets in harm’s way) overlapping with hazards (triggering climate events or trends).
Each of these three components can be a target for smart actions to decrease risk.
“We live in an era of man-made climate change,” said Vicente Barros, Co-Chair of Working Group II. “In many cases, we are not prepared for the climate-related risks that we already face. Investments in better preparation can pay dividends both for the present and for the future.”
Adaptation to reduce the risks from a changing climate is now starting to occur, but with a stronger focus on reacting to past events than on preparing for a changing future, according to Chris Field, Co-Chair of Working Group II.
“Climate-change adaptation is not an exotic agenda that has never been tried. Governments, firms, and communities around the world are building experience with adaptation,” Field said. “This experience forms a starting point for bolder, more ambitious adaptations that will be important as climate and society continue to change.”
[stextbox id=”custom” float=”true” align=”left” width=”300″ bcolor=”d2d0d1″ bgcolor=”dbdbdb” image=”null”]Future risks from a changing climate depend strongly on the amount of future climate change. Increasing magnitudes of warming increase the likelihood of severe and pervasive impacts that may be surprising or irreversible. [/stextbox]
“With high levels of warming that result from continued growth in greenhouse gas emissions, risks will be challenging to manage, and even serious, sustained investments in adaptation will face limits,” said Field.
Observed impacts of climate change have already affected agriculture, human health, ecosystems on land and in the oceans, water supplies, and some people’s livelihoods. The striking feature of observed impacts is that they are occurring from the tropics to the poles, from small islands to large continents, and from the wealthiest countries to the poorest.
“The report concludes that people, societies, and ecosystems are vulnerable around the world, but with different vulnerability in different places. Climate change often interacts with other stresses to increase risk,” Field said.
Field added: “Understanding that climate change is a challenge in managing risk opens a wide range of opportunities for integrating adaptation with economic and social development and with initiatives to limit future warming. We definitely face challenges, but understanding those challenges and tackling them creatively can make climate-change adaptation an important way to help build a more vibrant world in the near-term and beyond.”
The Working Group II contribution to the IPCC Fifth Assessment Report (WGII AR5) is available at www.ipcc-wg2.gov/AR5 and www.ipcc.ch.