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Note that the Framework Convention on Climate Change (UNFCCC), in its Article 1, defines climate change as: ‘a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods.’ The ...
- Observed impacts
- Projected future impacts
- Fresh water resources and their management
- Ecosystems
- Food, fibre and forest products
- Health
- Industry, settlement and society
- Regions that will be especially affected
- Climate Change 2007 - The Synthesis Report
- Responding to climate change
- Adaptation options:
- Mitigation options:
Many natural systems, on all continents and most oceans, are being affected by regional climate changes, particularly temperature increases. Observed impacts include: Changes in snow, ice and frozen ground (including permafrost); Effects on hydrological systems; Changes on terrestrial biological systems; Trend towards earlier greening of vegetatio...
As regards the projected impacts, more specific information is now available on the nature of these impacts, across a wide range of systems and sectors. Examples of projected impacts include:
Runoff and water availability are projected to increase at high latitudes and in some wet tropics, and decrease over much of the mid-latitudes and dry tropics, some of which are presently water-stressed areas; Drought-affected areas will probably increase, and extreme precipitation events, which are likely to increase in frequency and intensity, wi...
The following ecosystems are identified to be most vulnerable, and are virtually certain to experience the most severe ecological impacts, including species extinctions and major biome changes: ! On continents: tundra, boreal forest, mountain and Mediterranean-type ecosystems; ! Along coasts: mangroves and salt marshes, due to multiple stresses; ! ...
Moderate warming benefits cereal crops and pasture yields in mid- to high-latitude regions, but even slight warming decreases yields in seasonally dry and tropical regions. Further warming has increasingly negative impacts in all regions; Increases in the frequency of droughts and floods are projected to affect local crop production negatively, ...
• Projected climate change -related exposures are likely to affect the health status of millions of people worldwide, particularly those least able to adapt, such as the poor, the very young and the elderly.
Areas most likely to be affected are the poorer, often rapidly expanding communities near rivers and coasts, which use climate sensitive resources and are prone to extreme weather; Where extreme weather events become more intense and or more frequent, their economic and social costs are predicted to increase.
The Arctic, due to impacts of high rates of projected warming on natural systems and human communities; Africa, because of low adaptive capacity and projected climate change impacts; Small islands, where there is high exposure of population and infrastructure to projected climate change impacts; Asian and African megadeltas, due to large population...
1 According to the IPCC, economic potential is the mitigation potential, which takes into account social costs and benefits and social discount rates, assuming that market efficiency is improved by policies and measures and barriers are removed. The AR4 Synthesis Report draws together and integrates up to date policy-relevant scientific, technical ...
Societies can respond to climate change both by reducing the rate and magnitude of change by reducing GHG emissions (mitigation), and by adapting to its impacts. Many impacts can be avoided, reduced or delayed by mitigation, but adaptation will be necessary to address impacts resulting from the warming which is already unavoidable due to past emis...
Adaptation can reduce vulnerability, both in the short and the long term; Vulnerability to climate change can be exacerbated by the presence of other stresses, arising for example from current climate hazards, poverty, unequal access to resources, food insecurity, trends in economic globalisation, conflict and incidence of diseases such as HIV/AIDS...
There is substantial economic potential for the mitigation of global GHG emissions over the coming decades, that could offset the projected growth of global emissions or reduce emissions below current levels (high agreement and much evidence); In all analysed world regions, near-term health co-benefits from reduced air pollution, as a result of act...
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Climate is the sum of weather trends over long periods of time (centuries or even thousands of years). Climate is what we do expect. Weather is what we get. Global Climate change. Significant long-term changes in the climate parameters . Global. Climate Change . global. warming. Weather systems do not respect geographical borders.
The Intergovernmental Panel on Climate Change (IPCC) is the United Nations body for assessing the science related to climate change. IPCC-61 Vacancies. Latest.
Aug 9, 2021 · GENEVA, Aug 9 – Scientists are observing changes in the Earth’s climate in every region and across the whole climate system, according to the latest Intergovernmental Panel on Climate Change (IPCC) Report, released today.
Mar 20, 2023 · IPCC stands for Intergovernmental Panel on Climate Change. The IPCC is the scientific group assembled by the United Nations to monitor and assess all global science related to climate change. Every IPCC report focuses on different aspects of climate change. This latest report is the IPCC’s 6 th Synthesis report. It updates and compiles in one ...
ience related to climate change. The IPCC was set up in 1988 by the World Meteorological Organization (WMO) and United Nations Environment Programme (UNEP) to provide policymakers with regular assessments of the scientific basis of climate change, its impacts and future risks, and optio.
