Dikran Marsupial
  • Member for 7 years, 7 months
  • Last seen this week
How many trees would I have to plant to solve Global Warming?
Accepted answer
49 votes

In 2010 anthropogenic emissions (not including land use change) were approximately 9167 million metric tonnes. Your data on trees holding 13 lbs (5.9 kg) of carbon per year equates to 169.6 trees per ...

View answer
Does this paper, using neural nets, prove industrialization is irrelevant to global warming?
Accepted answer
19 votes

The paper is deeply flawed from both the climate science and machine learning perspectives. The most obvious being the most eye-catching claim that equilibrium climate sensitivity is approximately 0....

View answer
Can anyone explain the reason why CO$_2$ increases global temperatures (not the simplistic greenhouse analogy provided for public consumption)?
12 votes

Borrowing an explanation from one of my other answers, the basic mechanism of the greenhouse effect is roughly as follows (note this is also a simplified model) The Earth is in (to all intents and ...

View answer
How to reconcile hourly vs. daily probability of precipitation in the forecast?
11 votes

The probability of precipitation is most likely to mean the proportion of models in an ensemble or weather models in which precipitation was observed at a particular location over a particular time ...

View answer
Looking for evidence against some points raised in Ivar Giaever's speech on climate change
7 votes

Temperature differences y/y are very small compared to natural variation during the year, and the trend we see could be statistical illusion, especially that the scientists who developed the ...

View answer
Is there any experiment to prove that CO2 with the atmosphere concentration can have greenhouse effect?
7 votes

To see why we can't perform an experiment in lab conditions to verify the greenhouse effect, we need to start by considering how the [rather badly named] greenhouse effect operates: The Earth is in (...

View answer
Academic but accessible defense of the scientific understanding of anthropogenic climate change?
7 votes

Prof. Raymond Pierrehumbert's book the Principles of Planetary Climate is a pretty good primer on the physics that drives climate. I'm not too sure that the mainstream scientific view on ...

View answer
Will the Southern Ocean act as a net source or sink for atmospheric $\ce{CO2}$ in the future?
6 votes

I think you may have misunderstood the abstract of the paper, which says: Various human activities, including fossil fuel combustion and forest clearing, emit about eight petagrams (or billion ...

View answer
Does the regional localisation of global temperature trends suggest contamination by urban development?
5 votes

The blog article suggests that the increase in "waste heat" from growing urbanisation is biasing the temperature observations. The problem with this argument is that the heat generated directly from ...

View answer
"The world will start COOLING DOWN in 2017"?
4 votes

Evans has been making predictions of this nature for a while, for example, from 2014: "It’s already baked in the cake; we can see a few years into the future." The prediction isn't looking too goo ...

View answer
UAH and RSS Lower Troposphere data
Accepted answer
4 votes

Firstly, the RSS and UAH datasets do not "line up nearly perfectly", the diagram below shows both products over the last 20 years (which appears to be what this question is actually about) here is the ...

View answer
Why are most effects of the predicted climate change negative?
3 votes

I would say that the reason is because human civilisation, and particularly agricultural practices, evolved and are adapted to the pre-industrial climate. This means that any substantial change in ...

View answer
To what degree does historical measurement inaccuracies contribute to climate change models?
2 votes

"In short, the question is basically from a climate change sceptic that goes like - "Thermometers have gotten better and we are just measuring the true temperature and it's not that the ...

View answer
How to interpret precipitation probability?
2 votes

It is likely that the forecast is made using an ensemble of runs from a weather model. As weather is chaotic (deterministic, but heavily dependent on initial conditions), each run will show a ...

View answer
Atmospheric Carbon: Whence the discrepancy?
2 votes

Atmospheric CO2 rises because more CO2 is being put into the atmosphere than is being taken out. The airborne fraction (the proportion of cumulative carbon dioxide emissions from anthropogenic ...

View answer
How much of Earth's internal heat comes from primordial heating and how has it changed since Earth's formation?
1 votes

William Thompson, the first baron Kelvin worked out that the Earth was around 20 to 400 million years old, based on the rate of cooling from an assumed molten state. This would imply that the Earth's ...

View answer
Does climate change cause increase in CO2?
1 votes

A rather late answer on this question, but here goes: The idea that "global temperatures cause the increase of CO2." is fairly easily refuted. The usual line of reasoning is that the ...

View answer
Seeking climate and related sciences textbook recommendations
1 votes

"The Warming Papers" edited by David Archer and Raymond Pierrehumbert is good for historical context. It is basically a collection of classic journal papers, starting with Fourier and ...

View answer