Catch up on stories from the past week (and beyond) at the Slashdot story archive

 



Forgot your password?
typodupeerror

Comment: KISS (Score 4, Insightful) 93

Voting should be a low tech process that anybody can understand. Too much technological magic erodes the trust of voters who are capable of understanding it. Simply marking a ballot with a pen is understandable by anyone. Maybe you count them by machine but you always have the fallback of machine counting. I don't trust any voting process that doesn't have that fallback option. If the voting records are only held electronically how can you ever completely trust the results haven't been hacked?

Comment: Re:Any materialized predictions? (Re:Sudden?) (Score 1) 262

by riverat1 (#49758639) Attached to: ESA Satellite Shows Sudden Ice Loss In Southern Antarctic Peninsula

Well those blog posts were written by Michael Mann and Stephan Rahmstorf, two rather prominent scientists and they do have citations to peer reviewed science. I don't have time to dig deeper now as I'm leaving in a few hours for a week of whitewater rafting.

There's not a lot of difference between the warming rate from 1950-1998 and 1950-2012 and choosing 1998 is cherry picking since it was an unusual year, more than 2 sigmas above the temperature trend. Since something like 93% of the warming goes into the oceans anyway it doesn't take much of a change in the rate of ocean heat absorption to have a large effect on atmospheric temperatures. But as long as there is an energy imbalance all of that heat is still accumulating and sooner or later it will have its effects.

Comment: Re:Any materialized predictions? (Re:Sudden?) (Score 2) 262

by riverat1 (#49757131) Attached to: ESA Satellite Shows Sudden Ice Loss In Southern Antarctic Peninsula

Here are several posts at RealClimate on the subject of whether warming has paused or not:

http://www.realclimate.org/ind...
http://www.realclimate.org/ind...
http://www.realclimate.org/ind...
http://www.realclimate.org/ind...

There are indications that the PDO is switching to a warm phase that generally favors El Ninos. If that happens temperatures may well move above climate model projections in a few years. It's all a part of the noise of natural variability. As I said before less than about 30 years is too short a time period to make judgements about the temperature trends.

Comment: Re:Any materialized predictions? (Re:Sudden?) (Score 1) 262

I (and quite a few scientists) think the IPCC report made a mistake in talking about a hiatus. As shown statistically by Tamino it's a meaningless distinction at this point. Looking at the temperature trend only since 1998 is too short a period climatologically speaking as the standard climatological period is 30 years.

The only way climate models can account for natural variability is by using uncertainty ranges since by its nature natural variability isn't predictable ahead of time. The fact that temperatures are still within the uncertainty range of the climate models means it's impossible to say they're wrong.

Comment: Re:Any materialized predictions? (Re:Sudden?) (Score 3, Interesting) 262

I'm not going to try again because I've already presented you with this peer reviewed paper that compares IPCC projections to observations for temperature and sea level rise. The fact that you won't accept the format I present it in just shows how you lack intellectual flexibility.

Comment: Re:not significant (Score 1) 262

No the only Antarctic ice that is increasing some is the sea ice. Even with the increase in sea ice the continent as a whole is losing more ice than it's gaining and the rate of loss is accelerating. 300 km^3 is only talking about one small area in the southern Antarctic Peninsula.

Comment: Re:Global air conditioning (Score 2) 262

I'm in the Philippines at the monent and its 40 degrees celsius plus and all the malls and everything else seems to be airconditioned down to 22 degrees celsius or so. Could someone crunch the numbers of the global heating caused by air conditioning starting with their power consumption and efficiency for example? I'm thinking that insulation might be a better investment to prevent climate change because otherwise, what we are doing is expending huge amounts of energy to cool small sections (and thereby heating everything else) on a massive and unprecedented scale...

The numbers have been crunched here. They show that the heat emitted by all human activities are about 1% of the heat from enhanced greenhouse warming so it's pretty much just at the rounding error level.

Comment: Re:How do you define southern Antarctica? (Score 1) 262

Being as it is the continent that encompasses the south pole, how do you define what is southern?

Antarctic is a big continent. The Antarctic Peninsula stretches out toward South America. The article specifically talks about the southern Antarctic Peninsula which is well north of the South Pole.

It's time to boot, do your boot ROMs know where your disk controllers are?

Working...