nuclear-news

The News That Matters about the Nuclear Industry

Global warming is already affecting countries: some are becoming severely affected

From heatwaves to hurricanes, floods to famine: seven climate change hotspots
Global warming will not affect everyone equally. Here we look at seven key regions to see how each is tackling the consequences of climate change,
Guardian, John Vidal, 23 June 17, It could have been the edge of the Sahara or even Death Valley, but it was the remains of a large orchard in the hills above the city of Murcia in southern Spain last year. The soil had broken down into fine white, lifeless sand, and a landscape of rock and dying orange and lemon trees stretched into the distance.

A long drought, the second in a few years, had devastated the harvest after city authorities had restricted water supplies and farmers were protesting in the street. It was a foretaste of what may happen if temperatures in the Mediterranean basin continue to rise and desertification grows.

All round the world, farmers, city authorities and scientists have observed changing patterns of rainfall, temperature rises and floods. Fifteen of the 16 hottest years have been recorded since 2000. Carbon dioxide and other greenhouse gas emissions steadily climb. Oceans are warming and glaciers, ice caps and sea ice are melting faster than expected. Meanwhile, heat and rainfall records tumble.

The evidence for the onset of climate change is compelling. But who and where is it hitting the hardest? How fast will it come to Africa, or the US? What will be its impact on tropical cities, forests or farming? On the poor, or the old? When it comes to details, much is uncertain.

Mapping the world’s climate hotspots and identifying where the impacts will be the greatest is increasingly important for governments, advocacy groups and others who need to prioritise resources, set goals and adapt to a warming world.

But lack of data and different priorities make it hard. Should scientists pinpoint the places most likely to see faster than average warming or wetter winters, or should they combine expected physical changes with countries’ vulnerability? Some hot-spot models use population data. Others seek to portray the impacts of a warming world on water resources or megacities. Global bodies want to know how climate might exacerbate natural hazards like floods and droughts. Economists want to know its impacts on resources. Charities want to know how it will affect women or the poorest.

What follows is a subjective appraisal of the seven most important climate hotspots, based on analysis of numerous scientific models and personal experience of observing climate change in a variety of places. Delta regions, semi-arid countries, and glacier- and snowpack-dependent river basins are all in the frontline. But so, too, are tropical coastal regions and some of the world’s greatest forests and cities.

Murcia, Spain………   Dhaka, Bangladesh……   Mphampha, Malawi…..Longyearbyen, Norway…..   Manaus, Brazil…..  New York, US….  Manila, Philippines…..

The bottom line

Whether it’s faster than average warming, more vulnerable than average populations, or more severe than average drought, floods and storms, it’s clear that some places are being hit harder than others by Earth’s altered climate, and so face extra urgency when it comes to adapting to a new reality.

But the bottom line is that climate hotspots intersect, and nowhere will we escape the changes taking place. What happens in the Amazon affects West Africa; the North American growing season may depend on the melting of Arctic ice; flooding in Asian cities affected by warming on the high Tibetan plateau. And urban areas ultimately depend on the countryside.

We’re all in a hot spot now.   This article was originally published by Ensia  https://www.theguardian.com/environment/2017/jun/23/from-heatwaves-to-hurricanes-floods-to-famine-seven-climate-change-hotspots?CMP=share_btn_tw

Advertisements

June 24, 2017 - Posted by | 2 WORLD, climate change

No comments yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: