Hide Scientists take samples from the center of the coral. Paleoclimatology is the study of past climates.
Climate change is 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 world's climate system, including the atmosphere, oceans and cryosphere, is changing and will continue to change at rates unprecedented in recent human history. Findings on the scientific basis for climate change suggest that a number of human-induced alterations of the natural world are involved.
Climate change affects all countries and remains one of the most important development challenges facing humanity. It disrupts national economies and affects lives, costing people, communities and countries significantly today and in the future.
The main impacts of climate change are observed through both slow onset events e.
Climate change occurs in a sequence of key events. They include process drivers, GHG emissions, CO2 concentrations, changes evidencing climate change, occurrence of slow onset events and occurrence of extreme hydrometeorological events; which, depending on the country's disaster preparedness and risk reduction infrastructure, will result in disasters and their corresponding impacts on people, human settlements, economic assets and ecosystems.
Each of the parts of this sequence can be described and measured to some extent, and pertinent statistics can be produced, depending on countries' priorities and resources. Most of the literature about climate change is focused on analytical and policy aspects.
The guidance available about data and statistics for the measurement of climate change is mainly about methodologies to estimate GHG emissions. However, work is increasingly being conducted to develop methodologies on the other aspects. They include climate change evidence and impacts, quantification of the occurrence of disasters, their magnitude and different impacts, as well as adaptation efforts.
Due to this increasing importance of statistical work on climate change, this new knowledge platform is dedicated to climate change statistics. It aims to provide guidance and tools for countries interested in collecting, compiling and disseminating climate change statistics, emphasizing those that are related to environment statistics.
This platform includes various documents, tools and resources which are being made available.Nov 26, · The National Oceanic and Atmospheric Administration (NOAA) is the nation's leading collector of climate data.
Every day, NOAA analyzes vast amounts of data to predict changes to our climate. ˜ndings about climate change are continually analysed and tested.
Some areas of active debate and ongoing research include the link between ocean heat content and the rate of warming, estimates of how much warming to expect in the future, and the connections between .
We present a synthesis of climate change impacts on California agriculture in the context of: (1) historic trends and projected changes in temperature, precipitation, snowpack, heat waves, drought, and flood events; and (2) consequent impacts on crop yields, chill hours, pests and diseases, and agricultural vulnerability to climate risks.
There are 12 of the 17 Sustainable Development Goals that directly involve taking action on climate change– in addition to climate change having its own goal. were % greater than the annual average (climate records for Kentucky date back to ) with a deficit of % in the winter and a 13% increase in fall precipitation when compared to average values .
Impacts of climate change on costs and other socio-economic aspects of freshwater 45 Freshwater areas and sectors highly vulnerable to climate change 47 Uncertainties in the projected impacts of climate change on freshwater systems 47 Water-related adaptation to .