Questions tagged [climate-change]

Questions about changes of the climate system, including questions about global warming.

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4
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2answers
183 views

Are we changing Earth's weather with global warming?

I think that when the air heats up in the day, the radiation from the ground contributes way more to its heating at altitudes more than 300 meters above the ground than convection currents of air heat ...
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1answer
179 views

What does this diagram mean?

What does the bottom picture represent when it says Lower Emissions (B1) and Higher Emissions (B2)?
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3answers
171 views

Need different temperature change data sets explained

Nasa's temperature record is showing temperature increase. When I confronted a climate change skeptic with it, he replied that the data has been tempered with, and that there are different data sets ...
6
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1answer
272 views

Coral growth keeping up with sea level rise?

On 11 sep 2016, the Australian Herald Sun placed an opinion piece by Andrew Bolt titled Drowning in cash: Pacific islands love this scare* about the $300 million** financial aid pledged by the ...
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1answer
1k views

Did the Neolithic Revolution have an effect on the earth's climate?

I imagine that human agriculture had a major effect on the composition of flora across the planet's surface. Did the transition from gathering to growing have a measurable effect on climate? If so, ...
2
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1answer
75 views

Please could you help me finding global warming video with ice melting in glass time messurment scene?

Few months ago I watched a video posted on reddit about climate change and in it there was scene showing glass of water with ice cubes. They were measuring how long it takes for ice to melt and then ...
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3answers
1k views

Will increased precipitation in Antarctica prevent sea level rise?

It has been suggested that global warming will lead to increased precipitation in parts of Antarctica. This would sequester water in the ice sheet, preventing sea level rise. However, the slope (and ...
4
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2answers
712 views

Why is Vladivostock so cold, while Dalian is so warm?

Over at SE History we're pondering the relation of temperature to Russian motives in establishing its Port Arthur colony in the late 1800's. Wikipedia says that Vladivostok is cold due to the ...
15
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1answer
355 views

Can climate models reliably predict meteorological extremes?

This question is related to and extension of my previous question which was about the methodology used to predict future climatic extremes: What is the methodology to analyze future climatic extremes ...
2
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0answers
93 views

volcanic effects on the climate during Pangaea

Which influence does the constellation of the continents have on the global climate? Was the biosphere more susceptible to climatic effects a volcanic eruption may cause during the Permian than it is ...
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1answer
225 views

How much reduction of insolation (solar energy) would be required to stop global warming?

Suppose a giant sheet of semi-reflective mylar (or some other kind of partial sun-screening material) was temporarily placed into space between the Earth and the Sun with the intent to lower the ...
2
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2answers
112 views

Global warming and winter temperatures

What causes cold temperatures to move earlier than they usually move? Here in Buffalo the weather was 9 °C. However, everyone had winter coats and hats on. There was no snow, but it was very very ...
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0answers
45 views

Why is the increased albedo from cloud cover not expected to counteract global warming? [duplicate]

(I'm not saying global warming isn't a thing!) So, any fool will tell you that cloudy days are colder days, some times significantly so. When there are multiple cloudy days the temperature will ...
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2answers
184 views

Why does the rising of high clouds due to climate change impart positive radiative feedback on radiative forcing?

As seen in the figure below. The larger the temperature difference between surface and cloud, the more positive the radiative forcing is from the cloud. So as the cloud moves up, it supposedly ...
10
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1answer
237 views

What is the potential impact of hurricane intensification and sea level rise on coastal flooding?

Climate change has the potential to increase flooding by hurricane intensification (magnitude and intensity) and by sea level rise. Many communities around the world are already exposed to coastal ...
8
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1answer
205 views

Does the amount of energy released from burning of fossil fuels have a measurable impact on global warming? [duplicate]

I understand that the main issue of global warming is greenhouse gases that trap solar energy instead of allowing it to bounce back into space. That being said, I've always had this impression or idea ...
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0answers
247 views

How about local impacts of deforestation on droughts and floods?

In fields like economics, people tend to think that catastrophic events like droughts, floods, desertification, landslides, soil erosion etc. are events which are linked to global climate change and ...
16
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1answer
379 views

What is the methodology to analyze future climatic extremes using the results of climate models?

What is the accepted methodology to predict future climatic extremes using the results of climate models? I have recently read a report about climatic extremes considering climate change (MICE, 2002)....
6
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1answer
383 views

Above average global temperature in March 2016

The question arose when I heard from friends across many countries that March has never been so hot. I myself felt the same in my city (Bangalore, India). Then I tried searching on internet, and I ...
2
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2answers
162 views

Is this paper attributing a change in polar wander to climate change?

After coming across this article here, and reading the paper here I came away with the impression that the authors were saying that polar wander is being affected by climate change due to mass ...
5
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1answer
354 views

Global warming cycles

Everyone is saying we are in a global warming, an unnatural one at that because of CO2. Has there ever been a 'global warming' in Earth's history? I know that global cooling is cyclical and 'looks' ...
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1answer
66 views

What are the top 21 meetings regarding climate change?

I was at an academic conference recently and one of the presenters mentioned examining certain variables before and after the top 21 climate change meetings. Unfortunately I was not able to get a ...
4
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1answer
301 views

How does the lifetime of methane vary in the atmosphere?

When reading about methane and its effect on climate, it is clear that its lifetime in the atmosphere is important to the global warming potential. However, the lifetime does vary from 9 to 15 years, ...
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1answer
115 views

Is there a formula for heat retained by an atmosphere, based on density and composition?

I'm looking for a formula, either precise or an approximation (it's for a video game so it's ok to have somewhat rough numbers), that determines heat retained from the sun by an atmosphere, based on ...
13
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3answers
19k views

How has and how does the lithosphere affect climate change?

The climatic system can be divided into five main components: the atmosphere, the hydrosphere, the lithosphere, the cryosphere and the biosphere. All these physical systems operate at different time ...
4
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1answer
136 views

Polar melting and the equator

As the polar ice caps disappear, the equatorial regions must take the bulk of extra water due to the earth's spin. My question is will the tilt of the earth be affected and what would be the ...
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3answers
3k views

Is 2015's record average temperature evidence that we are now experiencing runaway climate change?

2015 had the highest global temperatures on record, as discussed in this question, beating the last record ... in 2014. Are we now in a runaway climate change regime, where zero further human ...
6
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2answers
1k views

How far upstream would severe sea level rise (1m) noticably affect a large river?

The projection for sea level rise due to global warming seem to hover about 1m by 2100, let's use this figure. How far upstream would this noticably affect a large river, e.g. the Rhine? I think it ...
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1answer
46 views

Is there a defined reference period for the COP21 agreement?

In December, the the vast part of the world community has agreed on the tackling of climate change. This was the result of the 2015 United Nations Climate Change Conference, commonly abbreviated to ...
5
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1answer
123 views

Are 'Return Periods' being recalculated? If so, how?

The concept of 'return period' (= 'average recurrence interval', or ARI) is widely used in hydrology, and to a much lesser extent in geology, geomorphology, geophysics, etc. Whatever the application, ...
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1answer
1k views

How exactly is the “global average temperature” calculated and how reasonable is this method?

During the recent (2015) Paris climate negotiations there was a lot of talk in the media about "limiting the global temperature increase to 2 degrees Celsius". I keep wondering about what this value ...
5
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0answers
70 views

Relationship between obliquity, antarctic circumpolar current, and atmospheric $\ce{CO2}$

Hannah's text on the biology of climate change appears to suggest that forcing due to changes in obliquity can act in opposite ways in Antarctic waters. On one hand, "Low obliquity brings cool ...
3
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1answer
86 views

What is meant by Global-warming Potential (GWP)?

I was under the impression GWP (global-warming potential) is the measure of a gas' impact on global warming, in comparison with CO2. E.g. methane has a GWP of 86 over 20 years - Wikipedia Comparing ...
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5answers
256 views

How will increased $\ce{CO2}$ affect forests and other vegetative areas?

Some researchers contend that increases in atmospheric CO2 (e.g. from anthropogenic emissions) will enhance plant growth in general. What is the level of that enhancement? Does the associated ...
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0answers
130 views

Correlation of El Nino and south indian monsoon

A recent article in New Scientist reports the following claim made by Wenju Cai at CSIRO Melbourne. Southern India is having a lot of rain as it goes into winter, having come out of the dry ...
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0answers
75 views

How to do frequency analysis of an index when some years have zero value?

I want to do frequency analysis of drought severity, but unlike precipitation data here I have few zero values in some of the years. how to do this? Here is the sample data: ...
3
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1answer
230 views

UAH and RSS Lower Troposphere data

The UAH 6.0 and RSS lower troposphere data sets line up nearly perfectly and both show no significant warming for over 20 years. What is the leading theory for what's going on? What explains this?
14
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2answers
551 views

Could the Dead Sea dry up? and if so, when?

According to recent findings, during the last interglacial period, about 120,000 years ago, the precursor of the Dead Sea (Lake Lisan) dried up perhaps entirely. Today, the Dead Sea level is dropping ...
5
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1answer
112 views

Do higher global temperatures increase volcanic activity and earthquakes?

I've read that when global temperature increases significantly, liquid magma can make it's way closer to the surface of earth, causing increased volcanic activity and earthquakes. Is there scientific ...
6
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1answer
126 views

Does the regional localisation of global temperature trends suggest contamination by urban development?

Much of the raw data behind the various datasets reporting the average temperature of the world are now available. So it is possible to look for strange patterns in the daily or monthly temperature ...
6
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2answers
611 views

Why do winter temperatures account for most of the increase in global temperature?

If you examine the detailed temperature records that form the basis for our understanding of global warming, there are some strange anomalies (at least from a naive point of view where warming affects ...
11
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3answers
3k views

How will climate change affect the extent of the Sahara Desert?

Will it increase the size of it? (perhaps by increasing the extent of the Hadley Cells)?
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1answer
157 views

Time relativity relating to Carbon dating? [closed]

Theoretically if in early years the earth was moving at an astronomically different pace (whether in orbit or rotation, whatever sounds better) wouldn't that alter the science of carbon dating? As I ...
11
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1answer
422 views

What would happen if we could revert $\mathrm{CO}_2$ production but took it too far?

So recently, scientists managed to produce fuel basically out of thin air (water, air and sunlight). And in a discussion I had with a friend, the question came up, what would happen if you took that ...
12
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4answers
2k views

When will the Final Ice Age happen?

As the Sun's luminosity slowly rises, the Earth's surface temperature will climb. Will Earth ever be too warm to have any more glacial periods? If so, when will that be? Edit: The existing answer ...
6
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1answer
168 views

What is the significance of the “super historic” rainfall for July 2015 in southern California?

On July 19, 2015 there was record rainfall over the Los Angeles and San Diego areas. This is amidst a historic drought and the rain is needed. This article: http://www.weather.com/storms/hurricane/...
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2answers
977 views

Is pure “heat” harmful to the environment?

Is heat, dissipated from a hot conductor to the surrounding air harmful to the environment? If it were large-scale would it have any negative eco-effect? Is a source of heat, considered harmful to ...
7
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2answers
252 views

Are Southern Hemisphere 'Polar Blasts' caused by global warming?

The SMH journalist writes about a cold snap hitting the East Coast of Australia in July 2015: Proof of the big chill will be the extent of regions across Tasmania, Victoria and NSW experiencing ...
6
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1answer
691 views

How does CO2 contribute to global warming?

CO2 is a common agent in fire extinguishers, which suppresses fire. How does this same chemical contribute to global warming when it also puts out fires?
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3answers
424 views

What are some near term effects of Global Warming?

Many of the predictions of Global Warming models are dated in the range of ~100 years or more from the present. I'm wondering if any models or data provide predictions for the more immediate future, ...