"Heliotrope Smith" wrote in message
...

"Ash" wrote in message
. uk...
Except they wern't, their log fires were not releasing fossil carbon.
Now if they had found some black rocks and also discovered they
burn't well that would be a different matter.


So ... if they were not releasing fossil carbon, didn't have power
stations,
cars, industry belching out pollution etc etc then what made the earth
warm
up and bring the ice age to an end?

I heard it was something to do with farting cows. Mmmmmmm, or was that
wooly
mammoths?



Cows ...

Daily Express
Tuesday October 27,2009
By Emily Garnham

BECOME A VEGGIE TO SAVE PLANET

Methane from livestock accounts for a fifth of the global warming impact

ONE OF the world's leading voices on climate change has sensationally urged
people to become vegetarian to help beat global warming.

Nicholas Stern, the author of an influential 2006 review of climate change,
said methane emissions from cows and pigs were putting "enormous pressure"
on the world.

He said: "Meat is a wasteful use of water and creates a lot of greenhouse
gases. It put enormous pressure on the world's resources. A vegetarian diet
is better."

The former World Bank chief economist was speaking ahead of a crunch climate
change talks in Copenhagen this December, which could result in higher costs
for meat and other foods that generate large quantities of greenhouse gases.

Lord Stern, who is not a strict vegetarian, told The Times: "I think it's
important that people think about what they are doing and that includes what
they are eating.

"I am 61 now and attitudes towards drinking and driving have changed
radically since I was a student.

"People change their notion of what is responsible. They will increasingly
ask about the carbon content of their food."

He added: "A diet that relies heavily on meat production results in higher
emissions than a typical vegetarian diet. Different individuals will make
different choices."

But Lord Stern - a professor at London School of Economics - warned: "The
debate about climate change should not be dumbed down to a single slogan,
such as 'give up meat to save the planet'."

According to estimates methane from livestock accounts for a fifth of the
global warming impact. As a greenhouse gas it is 23 times more powerful than
carbon dioxide If business continued as usual then temperatures could
increase by 5C by early next century, warned Lord Stern.

He said: "These kinds of changes will have huge consequences - southern
Europe is likely to be a desert; hundreds of millions of people will have to
move. There will be severe global conflict."

Lord Stern said it was "vital" the UK public understood what was at stake.

"These negotiations will have a profound impact on the kind of world our
children, our grandchildren and future generations will live in," he said.

"The choice is stark. If we take strong and effective action now to tackle
the causes and consequences of climate change, we can create a bright future
of sustainable growth and prosperity across the world built on a low-carbon
economy.

"But if we fail, and allow less important short-term issues to cloud our
judgment, such that we end up with a weak and ineffective treaty, we will
condemn the world to a dark future, living in an increasingly hostile
climate and struggling to deal with the mounting risks and hardships that
will arise by continuing to follow a high-carbon route towards its
inevitable dead end."