Climate Change and Cities
With more people migrating to cities worldwide, and with a steady increase in severe weather patterns, a merging crisis arises that inevitably has to end in mass exoduses when disaster strikes. But how extreme will climate change be on coastal cities?
If in 2003 over 70,000 people died from an extreme heat wave in Europe, what does this mean for future cities that confront unprecedented heat, drought, landslides, hurricanes, floods, and rising sea levels? According to the recent World Bank report, An Urgent Agenda, we could be in for a lot of these “crisis zones.” It warned that the areas most affected – which will mostly be poverty-stricken coastal cities – will eventually lack the resources to rebuild in areas that will most likely just be destroyed again and again.
About one-third of the Netherlands is below sea level, effectively putting it on the front-lines of climate change, with all eyes watching to see how the country will cope with ever increasing sea levels. Hurricane Katrina in New Orleans showed the world how devastating a natural disaster can be to low lying cities. Now some experts warn that it won’t be long until the Dutch population has to pack up and move to Germany.
But the World Bank’s report put specific emphasis on the Third World because those areas have inadequate infrastructure to handle a severe disaster. Over a billion people are now starving on the planet, and lots of them are crammed into cities – like in India. India’s slums, as an example, are currently in extreme crisis, adding more weight to already fragile metropolises.
Urban systems are complex networks of human supply and demand. They consume and require vast amounts of resources – water, electricity, food, fuel, etc. And if that steady flow of input stops, you have a human disaster of catastrophic proportions that worsens by the minute. During medieval wars, opposing armies understood the effectiveness of blocking the input of food and water into a city. Urban dependency on supply has increased exponentially since that time period.
Today, global civilization is still in a relatively stable state. This allows the global community and multinational non-profit organizations to pool resources together when tragedy strikes an isolated area. But there must come a point in time, with increased global disaster and diminishing resources (both natural and monetary), when nations will no longer be able to help anyone but themselves. At this rate, worldwide disaster will become the norm, and so will a worldwide economic depression that we are already seeing grip whole nations. The free-market will turn into the free-for-all-market, and government will not be there to save the day, as many assume.
This converging crisis is, as the World Bank’s report said, an urgent agenda. It threatens the existence of huge populations of people. And if they are dislocated, an outcome deemed highly probable, where will they go? World leaders need to grasp the magnitude of urgency and begin green urban planning to help save both the environment and the human population it supports.
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Thursday, 07 April 2011