Climate change: Reducing the carbon hoofprint

  • Article by: Mark Hertsgaard
  • Updated: July 4, 2013 - 6:14 PM

Changes to agricultural practices could go so far as to swing the climate change trend. And you could still eat meat if you like to.

  • 59
  • Comments

  • Results per page:
pumiceJul. 4, 13 5:23 PM

From the article: "[O]pen source carbon sequestration ... [will allow us to] feed ourselves and save the planet at the same time": (1) Cut-cut-cutting industrial agriculture leads to a smaller carbon footprint; (2) sequestering carbon "improves the soil’s fertility and water retentiveness, thus raising food yields and resilience to drought and floods alike."

16
6
supervon2Jul. 4, 13 7:20 PM

Yeah. Let's stop all cars, lights, heat and all manufacturing and head for the caves. You first.

25
27
obamafone4meJul. 4, 13 7:41 PM

Lets see, no increase in the earths temperature in 15 years according to climate researchers. All of those who support the hoax are funded by government. The US government has spent 20 billion since the 80's to fund these so-called researchers and people act as if that makes it a consensus since they support the theory. The oil industry has spent millions to the governments billions to expose the hoax. All predictions of man made global warming are based on computer models. The government admits it wants to tax and regulate using this hoax. The anti-business and zero population crowd use man made global warming as a smoke screen. Not one person can tell us what the ideal temperature for the earth would be. Not one can tell us exactly how we can reduce or increase the earths temperature. Not one can show data which supports that taxing and regulating businesses will reduce CO2 or that reducing CO2 will change the earths temperature. The deniers refuse to believe that climates change naturally and have done so since the earth was formed.

27
28
owatonnabillJul. 4, 13 8:40 PM

If bovines are the topic, then this article certainly fits right in with the southern emissions of a northward-heading bull.

20
19
Rob7304Jul. 4, 13 9:16 PM

More co2 means better crop yields. That is why they pump it into green houses. More blacktop means a litany of higher temps - the urban heat island. But in the country, no warming has occurred. Our rural temps are the same as 100 years ago, with a few warm / cold cycles thrown in. The late great john Daly proved that. The global warming hoax has been a handy diversion from our real problems like a stagnant economy. The diversion is growing old.

26
26
martytoilJul. 4, 1310:21 PM

A look at the Earth's total heat content clearly shows global warming has continued past 1998. So why do surface temperature records show 1998 as the hottest year on record? Figure 1 shows the heat capacity of the land and atmosphere are small compared to the ocean (the tiny brown sliver of "land + atmosphere" also includes the heat absorbed to melt ice). Hence, relatively small exchanges of heat between the atmosphere and ocean can cause significant changes in surface temperature. In 1998, an abnormally strong El Nino caused heat transfer from the Pacific Ocean to the atmosphere. Consequently, we experienced above-average surface temperatures. Conversely, the last few years have seen moderate La Nina conditions which had a cooling effect on global temperatures. And the last few months have swung back to warmer El Nino conditions. This has coincided with the warmest June-August sea surface temperatures on record. This internal variation where heat is shuffled around our climate is the reason why surface temperature is such a noisy signal. Figure 1 also underscores just how much global warming the planet is experiencing. Since 1970, the Earth's heat content has been rising at a rate of 6 x 1021 Joules per year. In more meaningful terms, the planet has been accumulating energy at a rate of 190,260 gigawatts. Considering a typical nuclear power plant has an output of 1 gigawatt, imagine 190,000 nuclear power plants pouring their energy output directly into our oceans. Our climate is still accumulating heat. Global warming is still happening. Moreover, even if we focus exclusively on surface and lower atmosphere temperatures, the warming continues. Foster and Rahmstorf (2011) used multiple linear regression to filter out the effects of the El Niño Southern Oscillation (ENSO), and solar and volcanic activity (Figure 2), and found that the underlying global surface and lower atmosphere warming trends have remained very steady in recent years (Figure 3).

20
17
Rob7304Jul. 5, 1312:52 AM

Marty, the globe has warmed and chilled many times in the past. It has warmed and chilled many times just in the past 8,000 years. We were pretty chilly just 300 years ago during the little ice age. The problem with the theory is simply that a trace gas, co2, can't effect the temp of the globe more than a smidge, hence mankind

17
20
brownsbayJul. 5, 1312:54 AM

"Yeah. Let's stop all cars, lights, heat and all manufacturing and head for the caves. You first." - You won't get libs to admit they are dealing with reality.

17
21
Rob7304Jul. 5, 1312:56 AM

Co2 has no magical heating powers that the left attributes to it. It is a trace gas. At triple its concentration it is still a trace gas. Hence mankind is off the hook. Now lets turn our attention to actual REAL problems and fix them.

17
24
brownsbayJul. 5, 1312:59 AM

"The global warming hoax has been a handy diversion from our real problems like a stagnant economy." - Libs shun Christianity. They need a new religion. Man-made global warming fits the bill to a tee.

18
24

Comment on this story   |  

ADVERTISEMENT

  • about opinion

  • The Opinion section is produced by the Editorial Department to foster discussion about key issues. The Editorial Board represents the institutional voice of the Star Tribune and operates independently of the newsroom.

  • Submit a letter or commentary
Connect with twitterConnect with facebookConnect with Google+Connect with PinterestConnect with PinterestConnect with RssfeedConnect with email newsletters

ADVERTISEMENT

ADVERTISEMENT

ADVERTISEMENT