Friday, November 27, 2009

Nation & World

How Global Warming Will Hurt Crops

Lower yields, more pests, faster-growing weeds will be just some of the effects of climate change

Posted May 28, 2008

Reader Comments

hi

hi how are u

word u use

use more kid friendly words

The following quote was found in an article on this very same website, not one month later:

"The study pointed out that the United States could experience some economic boosts from cereal crop yields that are expected to rise by as much as 20 percent."

So, what's the deal? Is global warming going to hurt the crops or help the crops?

Is it any wonder there are skeptics?

Attn. skeptics

Joe Murphy, Dave Cavena:

First, the "ice age" view in the 70s was a minority view. My geoscience textbook from the 70s mentions global warming as a more likely possibility (since it was moving faster and would overtake the plodding trend to an ice age that would *otherwise* have time to form. Now it's likely too late for a natural cooling trend to give some relief from GW.

As for the sunspots etc: Yes, you may be right, but ironically that doesn't disprove the warming effect of CO2! It just means that something else might compensate in the other direction, and even then temporarily because such solar cycles don't last. If we're lucky, the solar cooling effect will be just about enough to make up for the warming effect of the CO2 and give us breathing space to make long-term structural changes before things get very difficult.

"tyrannogenius"

Climate Change

Looking as I do to UNS&WR for good reporting rather than scare-mongering, it is disappointing to read these articles on anthropogenic warming.

The earth has been cooling since 1998. Current sunspot activity is the lowest since 1790 - and that resulted in decades of extreme cold - including the winter of 1812 that defeated Napoleon in Russia. Last year the planet cooled faster (0.7 deg C) than in any year in recorded history. The heads of many institutions - including the head of meteorology @ MIT - dismiss current climate change theories as ignorant. The IPCC report does not validate the summary - written by politicians, not climatologists. Hundreds of climatologists have pointed this out in a letter to the IPCC.

(see: http://inthisdimension.com/2008/05/27/cap-and-spend/ for details and links)

The facts are that the planet is cooling, and that leading scientists disdain Mr Gore and his alarmism.

It would be nice to read facts, science and a diversity of opinion in your magazine. Jumping on a climate-change wagon driven by ignorant drivers does neither your reputation nor your readership any favors.

Agriculture

Agriculture is a primary sector and every country needs to give importance to it, but this centuries old profession is being deserted by many in favor of service sector which is paying high.

UN needs to bring all countries to table to discuss the issue in length and breadth. The citizens of planet earth needs to understand that we all are one creature and no tussles and fights will improve our lives.

Every country has its own enrichment and UN needs to encourage every citizen of this world to contribute to problems anywhere in the earth.

Mostly theorized hysteria

No proof, just models and theories. Back in the '70's the same type people were predicting a new ice age.

Joe in California

Whats the Reports name

Which report is this in reference too?

I'd like to read it but you don't give us the name or who published it.

Facts about CO2

I found this article very enlightening.

http://brneurosci.org/co2.html

It echos some of the things said in this article.

Rich

Ecosystem collapse

"Few seem to realise that the present IPCC models predict almost unanimously that by 2040 the average summer in Europe will be as hot as the summer of 2003 when over 30,000 died from heat. By then we may cool ourselves with air conditioning and learn to live in a climate no worse than that of Bagdad now. But without extensive irrigation the plants will die and both farming and natural ecosystems will be replaced by scrub and desert. What will there be to eat? The same dire changes will affect the rest of the world and I can envisage Americans migrating into Canada and the Chinese into Siberia but there may be little food for any of them." --Dr James Lovelock's lecture to the Royal Society, 29 Oct. '07

"I'm going to tell you something I probably shouldn't: we may not be able to stop global warming. We need to begin curbing global greenhouse emissions right now, but more than a decade after the signing of the Kyoto Protocol, the world has utterly failed to do so. Unless the geopolitics of global warming change soon, the Hail Mary pass of geoengineering might become our best shot." --Bryan Walsh, Time Magazine, 17 March 2008

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