Comments on: How do we really know humans are causing global warming?*

By: Bill D

Bill D — Mon, 09 Feb 2009 06:23:59 +0000

Real scientific debates take place in scientific journals. Read a few (hundred or thousand) scientific articles about various aspects of climate warming before reaching conclusions about the weight of evidence. My own research field (Limnology, lake ecology) is now very active with studies on effects of warming on lake food chains. We now have data for 20-50 years from some lakes, so the effects of the recent increases in temperature and changes thermal stratification and their effects on species and communities are being studied and reported.

In order to enter a scientific debate, one needs to at least understand basic facts that are well known. For example, in past ages, volcanoes made significant contributions to the atmosphere’s CO2. However, we are now in the middle of burning within a few hundred years, the fossil fuels that accumulated over hundreds of millions of years are being burned in a few hundred years.

It has been very simple to measure the direct increase in the atmosphere’s CO2 over the last 60 years, the human contribution to the increase (essentially all of the increase) and rate of increase if we continue to use fossil fuels. Accurate estimates of past CO2 values (over the last 10’s of thousands of years come from glacial cores. These are just basics found in any science text book. Anyone whose post reflects an ignorance of basic, well known facts can hardly make intelligible comments. Ignoring such simple facts is ignoring science. Scientific debates start with what is known and then consider the cutting edge, where there is room for disagreement.

By: cet

cet — Sun, 18 Jan 2009 23:01:05 +0000

evet RepugsRthugs, there is still things that can affect global warming other than CO2. Just because we produce co2 doesnt mean its all our fault

By: msn nickleri

msn nickleri — Wed, 07 Jan 2009 15:42:20 +0000

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By: Serious Skeptic

Serious Skeptic — Tue, 23 Dec 2008 17:16:48 +0000

If manmade carbon dioxide emissions are causing global warming, then why have temperatures been going down for 10 years now. Not only is your theory wrong, your solutions to the problem would cause poverty and death all over the world. Yet you are so sure of yourselves that you push onward oblivious to the harm you are causing. I have only one choice, make enough money to pay for my energy use inspite of all the taxes you people want to impose. Kind of like Al Gore.

By: Antidote

Antidote — Sat, 20 Dec 2008 05:51:23 +0000

I would be a little careful about making comparisons between the AMA, representative of a highly corrupt science-in-name-only, and sciences worthy of the name, like physics, geology, climatology et al. Are you aware that while in any real science researchers share there data with others in the field so that they can check each other, it is absolutely common practice in medical fields that researchers refuse to share their data, even with competent colleagues who would like to re-analyze some experimental result? Pile on top of that the enormous amount of corporate money in medical fields and the monopoly of the AMA, and this is really all you need to know about medical so-called “science”.

It is important to be able to make these distinctions because these kinds of corruptions are what lead to a blanket scepticism about science and scientists in general.

By: Silas

Silas — Thu, 18 Dec 2008 00:02:10 +0000

got cut off there… Anyway, like somebody said before, we must act on the mere threat of a problem that could end our civilization. I think much more focus should be on the developing world – china and india will surpass u.s. emissions in the next few decades. I have faith that we will do our best eventually, but unfortunately people as a group do not change their habits until they are forced too. And as our current financial crisis has shown, we are poorly equipped to pass up short term gains for long term planning.

By: Silas

Silas — Wed, 17 Dec 2008 23:54:07 +0000

Like many have said here, the debate itself is important. However, far too many people resort to hyperbole and name calling. I find it interesting that those who don’t agree with human caused global warming often couple their arguments with their lament at the possibilityof their taxes increasing. So you pay a little more to fund some research, or hopefully a dramatic restructuring of our energy economy. If you are right, you lost some opportu ities you may have had otherwise (it probably won’t affect you that much, since you are already well off enough to be on a computer debating climate science on the Internet, and our taxes are going up soon – notice that debt the fed and national deficit continues to accumulate?). If you are wrong, and we have waited too long to act, then what? Your children, or grandchildren, face a drastically changed world with far lower standards of living (if we’re here).

By: Brian

Brian — Sat, 29 Nov 2008 07:43:17 +0000

Scientists say that global warming is our fault. Or is it???Scientists can be wrong, as there is not evidence on where humans are causing it. A piece of paper signed provides as much evidence. But it might not be true. Thats the catch. Have as much experts as you can and thats all, you’ve earned yourself “evidence”.

By: Bob

Bob — Sat, 29 Nov 2008 07:38:51 +0000

There is no solid evidence that there is actually global warming. It could be natural or our fault. Animals of all kinds are contributing their part in carbon dioxide. So there is no proof that it is our fault.

By: Peter Walker

Peter Walker — Tue, 18 Nov 2008 22:21:35 +0000

No problems here. The new USA administration will make it all better.

http://news.yahoo.com/ s/ ap/ 20081118/ ap_on_el_pr/ obama_climate_change_6