Home | Community | Message Board

Please support our sponsors.

General Interest >> Political Discussion

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Amazon Shop for: Portable Greenhouse

Jump to first unread post. Pages: 1
old hand

Registered: 09/11/01
Posts: 1,351
Loc: BC Canada
No food, but I got an air-conditioned SUV I drive to the porn shop alone in
    #4100168 - 04/26/05 08:51 PM (11 years, 6 months ago)

Ah, who cares.

Let the market decide. There's lots people poorer than me who'll starve for lack of cash when food prices go up due to shortages.

Food shortages will never happen anyways. It's all a bunch of hippy tree hugging bullshit.

a recent consensus has emerged that rising atmospheric concentrations of carbon dioxide could come to the rescue.

Climate change warning over food production
18:17 26 April 2005
NewScientist.com news service
Fred Pearce
Related Articles
Rice yields plunging due to balmy nights
29 June 2004
Heatwave's warning for future of farming
23 August 2003
Intensive agriculture has reduced global warming
12 July 2001
Search New Scientist
Contact us
Web Links
Steve Long’s lab
Chinese Academy of Agricultural Science
The Royal Society
Climate change is set to do far worse damage to global food production than even the gloomiest of previous forecasts, according to studies presented at the Royal Society in London, UK, on Tuesday.

“We need to seriously re-examine our predictions of future global food production,” said Steve Long, a crop scientist at the University of Illinois at Urbana-Champaign, US. Output is “likely to be far lower than previously estimated”.

Most researchers believe that higher temperatures and droughts caused by climate change will depress crop yields in many places in the coming decades. But a recent consensus has emerged that rising atmospheric concentrations of carbon dioxide could come to the rescue. The gas thought to be behind global warming could also speed up photosynthesis, counteracting the negative effects of warming and even ushering in an era of bumper crops.

But Long told the two-day meeting on crops and future climate that this conclusion was a dangerous illusion. It was, he said, based on results from tests in gas chambers and small greenhouses known to be unreliable.

Long reported instead on the findings of four studies in the US, China and Japan that all test crops in open fields. In these Free-Air Concentration Enrichment experiments, gases such as CO2 were piped into the air around plants - a world first.

The FACE experiments showed that for all four of the world’s main food crops - maize, rice, soybean and wheat - the real-world fertilization effect was only half as great as predicted by the contained experiments.

Meanwhile, in some FACE experiments, Long added a new variable not factored into previous studies. He puffed doses of ozone into the fields to simulate the expected rise in ozone smogs due to higher temperatures - and yields crashed. A 20% increase in ozone levels cut yields by 20%, he said.

Increases in ozone levels of this level are predicted for Europe, the US, China, India and much of the middle east by 2050. If Long’s findings prove correct, even CO2 fertilisation will not prevent the world’s crop yields from declining by 10% to 15%.

Profound implications
The implications for some of the world’s most populous countries could be profound. Xiong Wei of the Chinese Academy of Agricultural Science in Beijing presented data at the meeting suggesting that the country of 1.3 billion people could expect “more positive than negative impacts on China’s food production”.

He said CO2 fertilisation would more than counteract crop losses from rising temperatures. But Long said his new findings suggest China’s food production might fall rather than rise.

Long’s research is partly sponsored by the US government’s department of agriculture, which has previously been confident in its predictions of farmers’ ability to withstand climate change.

The Royal Society conference also heard about dangerous temperature thresholds that could destroy crops overnight and give rise to famine.

According to Andrew Challinor of the University of Reading, UK, climate change will mean tropical countries like India will face short periods of super-high temperatures - into the high 40s Celsius. These temperatures could completely destroy crops if they coincide with the flowering period.

  -I'd rather have a frontal lobotomy than a bottle in front of me


Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1

Amazon Shop for: Portable Greenhouse

General Interest >> Political Discussion

Similar ThreadsPosterViewsRepliesLast post
* The War on Drugs is driving me insane Learyfan 1,101 15 10/30/02 01:51 PM
by silver
* Should we all just drive SUV's and Ferraris?
( 1 2 3 all )
Alex213 1,754 58 02/16/06 04:28 PM
by gluke bastid
* Oil, Climate, and Terrorism EchoVortex 710 2 09/06/02 08:13 AM
by EchoVortex
* Why I like the "SUV owners support terrorism" commericals
( 1 2 3 4 all )
Learyfan 2,837 72 01/20/03 06:34 PM
by thescientist
* Stop Stephen Harper from blocking UN climate talks!
( 1 2 3 4 5 6 7 all )
moeburn 7,839 128 12/17/07 07:50 PM
by zappaisgod
* THOSE DAMN SUV's Anonymous 436 8 03/19/03 08:37 PM
by zeronio
* Police TASER woman out her SUV with 50,000 Volts (Video Link)
( 1 2 3 4 all )
IChing 3,710 77 09/22/07 04:32 PM
by BrAiN
* Bush SUV Tax Break
( 1 2 all )
EchoVortex 1,480 28 01/22/03 09:37 AM
by hongomon

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Prisoner#1, Enlil
245 topic views. 1 members, 2 guests and 4 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:
RVF Garden Supply
Please support our sponsors.

Copyright 1997-2016 Mind Media. Some rights reserved.

Generated in 0.031 seconds spending 0 seconds on 13 queries.