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Extreme weather events are part of a “new normal” trend

Flood, Valladolid, Spain. A man using a boat to cross
the flooded city. Climate change is responsible for the
increase in extreme weather events.

Last year was a terrible year for natural disasters. Unfortunately – and all too tragically for millions of people – 2007 represented the “new normal”, a new paradigm of extreme weather events. This all too clear manifestation of climate change demands a rapid transformation in how we prepare for and respond to nature’s hazards.

The Story

Intensive storms sweeping across Asia and the Caribbean, devastating droughts in Africa, wildfires in the southwestern US, massive flooding throughout Asia and large swathes of Africa – 2007’s global list of catastrophes read like a tired Hollywood disaster script. But these calamities were anything but fiction for tens of millions of people who suffered grievously from these events.

Last year’s litany of extreme weather events could just be a harbinger of things to come. In 2007, the UN issued an unprecedented 15 funding appeals for sudden natural disasters, 5 more than the previous annual record. All but one of these disasters was the result of extreme weather.  The recent reports of the Intergovernmental Panel on Climate Change (IPCC) cite research indicating that human influences on climate change have already increased the risk of certain extreme weather events and states that a 2°C rise in temperatures above 1990-2000 levels would increase the risk of many extreme events, including floods, droughts, heatwaves and fires. Heavy precipitation events are also envisioned for some regions – already, 2008 has seen widespread flooding in southern Africa.

The impact of natural disasters is not just the human and economic toll when they strike. Hundreds of millions more people could require humanitarian assistance in the coming years as climatic changes generate devastating consequences not only for global food and water supplies and public health, but also for migration flows and, not least, political stability as battles for resources intensify.  The IPCC concurs that migration and movement of people is a particularly critical source of potential conflict. Migration, usually temporary and often from rural to urban areas, is a common response to calamities such as floods and famines. Climate change could further adversely affect food security and exacerbate malnutrition while agricultural production, including access to food, in many African countries, is projected to be severely compromised.

While catastrophes cannot be avoided, there is an enormous amount we can do to reduce our risks and vulnerability by dramatically improving disaster risk reduction, preparedness and response efforts. Our actions – or chronic inaction – are decisive in determining how much damage results from nature’s capricious powers. How we build our homes and schools, design our bridges, construct our cities, and protect our coastlines – these are what determine the destructive consequences of any given event.  We urgently need to improve how we prepare for and respond to disasters triggered by extreme weather events. The UN will have to find ways to support the most vulnerable communities at the national and local levels to help them adapt to extreme weather and other climate change impacts.

The Context


Office for the Coordination of Humanitarian Affairs (OCHA):
Stephanie Bunker, Spokesperson, Tel: 917 367 5126
Send an email



Office for the Coordination of Humanitarian Affairs (OCHA), ReliefWeb

United Nations Environment Programme (UNEP)

Intergovernmental Panel on Climate Change (IPCC)

International Strategy for Disaster Reduction (UN/ISDR)

World Meteorological Organization


UN News Service