Humanity is on a crash course with carbon

 

Share
Related Topics

Humanity is currently on course to double or even triple the carbon dioxide content of the Earth’s atmosphere by the end of this century.

Our current level of about 400 parts per million of CO2 is already higher than at any time during the evolutionary history of humans.

By 2100 the carbon content of the air could reach levels not seen for as long as 50 million years, pushing up global temperatures by 4 to 6 degrees Celsius (7.2-10.8 F) and transforming our planet beyond all recognition.

Even at four degrees of warming there will be a global collapse in food production due to drought and heat stress of crops in main breadbasket areas. Glacial ice will completely disappear in the Andes, Alps and substantial portions of the Himalayas. There will also be a significant rise in ocean acidification. A change in pH spells trouble for shelled marine life, including coccolithophores, which make a notable percentage of Earth’s oxygen.

The single and overriding priority for any environmentalist in the 400ppm world must be to quickly eliminate coal power.

There is no prospect whatsoever of us running out of coal – or indeed any other fossil fuel – in time to save the climate.

China has the third-largest coal reserves in the world, after the US and Russia; India the fifth-largest. At current rates of production, global coal supplies will last for 112 years, and no doubt vast new reserves still remain to be found.

What we need to do is ensure is that we put the investment in now to new forms of generation – nuclear and renewables - that in future will make coal uneconomic.

And this must surely take place first in rich countries like Britain, as poorer countries in Asia and elsewhere still rely on cheap coal to fuel their much-needed economic growth.

If the UK cannot lead the way in removing coal from its grid, then what does that say to other countries without our economic resources and infrastructure?

Mark Lynas’ new book Nuclear 2.0: Why a Green Future Needs Nuclear Power is available from Amazon.

React Now

Latest stories from i100
Have you tried new the Independent Digital Edition apps?
iJobs Job Widget
iJobs General

Recruitment Genius: Finance Director

£65000 - £80000 per annum: Recruitment Genius: Finance Director required to jo...

Recruitment Genius: Medico-Legal Assistant

£15000 - £25000 per annum: Recruitment Genius: This is a unique opportunity fo...

Ashdown Group: (PHP / Python) - Global Media firm

£50000 per annum + 26 days holiday,pension: Ashdown Group: A highly successful...

The Jenrick Group: Quality Inspector

£27000 per annum + pension + holidays: The Jenrick Group: A Quality Technician...

Day In a Page

Read Next
David Cameron faces the press as he arrives in Brussels for the EU leaders summit on Thursday reuters  

On the Tusk of a dilemma: Cameron's latest EU renegotiation foe

Andrew Grice
John Profumo and his wife Valerie Robson in 1959  

Stephen Ward’s trial was disgraceful. There can be no justification for it

Geoffrey Robertson QC
Amir Khan: 'The Taliban can threaten me but I must speak out... innocent kids, killed over nothing. It’s sick in the mind'

Amir Khan attacks the Taliban

'They can threaten me but I must speak out... innocent kids, killed over nothing. It’s sick in the mind'
Homeless Veterans appeal: 'You look for someone who's an inspiration and try to be like them'

Homeless Veterans appeal

In 2010, Sgt Gary Jamieson stepped on an IED in Afghanistan and lost his legs and an arm. He reveals what, and who, helped him to make a remarkable recovery
Could cannabis oil reverse the effects of cancer?

Could cannabis oil reverse effects of cancer?

As a film following six patients receiving the controversial treatment is released, Kate Hilpern uncovers a very slippery issue
The Interview movie review: You can't see Seth Rogen and James Franco's Kim Jong Un assassination film, but you can read about it here

The Interview movie review

You can't see Seth Rogen and James Franco's Kim Jong Un assassination film, but you can read about it here
Serial mania has propelled podcasts into the cultural mainstream

How podcasts became mainstream

People have consumed gripping armchair investigation Serial with a relish typically reserved for box-set binges
Jesus Christ has become an unlikely pin-up for hipster marketing companies

Jesus Christ has become an unlikely pin-up

Kevin Lee Light, aka "Jesus", is the newest client of creative agency Mother while rival agency Anomaly has launched Sexy Jesus, depicting the Messiah in a series of Athena-style poses
Rosetta space mission voted most important scientific breakthrough of 2014

A memorable year for science – if not for mice

The most important scientific breakthroughs of 2014
Christmas cocktails to make you merry: From eggnog to Brown Betty and Rum Bumpo

Christmas cocktails to make you merry

Mulled wine is an essential seasonal treat. But now drinkers are rediscovering other traditional festive tipples. Angela Clutton raises a glass to Christmas cocktails
5 best activity trackers

Fitness technology: 5 best activity trackers

Up the ante in your regimen and change the habits of a lifetime with this wearable tech
Paul Scholes column: It's a little-known fact, but I have played one of the seven dwarves

Paul Scholes column

It's a little-known fact, but I have played one of the seven dwarves
Fifa's travelling circus once again steals limelight from real stars

Fifa's travelling circus once again steals limelight from real stars

Club World Cup kicked into the long grass by the continued farce surrounding Blatter, Garcia, Russia and Qatar
Frank Warren column: 2014 – boxing is back and winning new fans

Frank Warren: Boxing is back and winning new fans

2014 proves it's now one of sport's biggest hitters again
Jeb Bush vs Hillary Clinton: The power dynamics of the two first families

Jeb Bush vs Hillary Clinton

Karen Tumulty explores the power dynamics of the two first families
Stockholm is rivalling Silicon Valley with a hotbed of technology start-ups

Stockholm is rivalling Silicon Valley

The Swedish capital is home to two of the most popular video games in the world, as well as thousands of technology start-ups worth hundreds of millions of pounds – and it's all happened since 2009
Did Japanese workers really get their symbols mixed up and display Santa on a crucifix?

Crucified Santa: Urban myth refuses to die

The story goes that Japanese store workers created a life-size effigy of a smiling "Father Kurisumasu" attached to a facsimile of Our Lord's final instrument of torture