Community Digest

Top new questions this week:

Why don't green house gases escape into space?

I have never heard an explanation as to what traps GHGs. What holds them in place? Has research been conducted to assess the efficacy of say triggering a change in their chemical composition into a ...

climate greenhouse-gases  
asked by Blair Irwin 6 votes
answered by BarocliniCplusplus 26 votes

Can clouds be formed without a pollen particle's role?

I read online that it is scientifically proven that pollen particles can trigger cloud formation "is that true"? if true ,does it mean that no clouds can be formed without pollen particles' ...

atmosphere climate clouds rain  
asked by capri reds 4 votes
answered by BarocliniCplusplus 8 votes

Connection between radiative imbalance and radiative forcing

There seems to be a general consensus that the Earth is in radiative imbalance, i.e., it is absorbing more solar energy than it radiates. One figure I've seen bandied about for this imbalance is that ...

climate-change radiative-transfer  
asked by Michael Seifert 3 votes
answered by Deditos 1 vote

Snow on a relatively warm day

Outside my window it's snowing. This isn't so strange, even for the South of England in mid-April. What is surprising is that the ambient air temperatures (according to the Met-Office) are about 7 or ...

meteorology snow  
asked by James K 3 votes
answered by JeopardyTempest 5 votes

Is there open scientific analysis of the proposed discharge of water from Fukushima?

Today in the news Japan has announced it will discharge water from Fukushima. All news sites I have looked at covering this give very little detail, only that about 1.4M Tonnes of water will be ...

environmental-protection  
asked by Tricky 3 votes

What will happen to the Indian plate after it slides under the Eurasian Plate?

What will happen if the Indian Plate is done sliding under the Eurasian plate? I hypothesied some possible answers. Tell me the answer and if my hypothesis is not correct. Most likely to least. It ...

plate-tectonics mountains tectonics mantle erosion  
asked by BearSmart 2 votes
answered by Earthworm 3 votes

Trees cleaning the air

Sorry if this is the wrong place... I have been camping a lot recently and I couldn't help but notice some of the campgrounds I am in are acres and acres of mostly pine trees. These trees have very ...

climate-change air-quality plant  
asked by dave k 2 votes
answered by Tyler Durden 2 votes

Greatest hits from previous weeks:

Why were both the sun and the moon red today?

Today was a normal day, except the sun and moon colors were strange. After 5pm, the sky was covered with cirrostratus-like translucent clouds and the sky was a blend of blue and grey. Everything ...

atmosphere moon sun  
asked by KKZiomek 22 votes

Is the color of the sky the same everywhere on earth?

Is the color of the sky at noon (local time) in, say, NY, Buenos Aires, London, Nairobi, Sydney, New Delhi and Tokyo the same? I choose the specific time of noon to exclude the twilight colors of the ...

atmosphere radiative-transfer  
asked by MagTun 23 votes
answered by farrenthorpe 15 votes

Cause for round holes in stones

I picked up this stone form a beach on the south coast of England (lancing). How is it possible it has such round holes? Plenty of stones looked similar.

geology  
asked by Nickpick 6 votes
answered by Alison Venugoban 3 votes

Why do crystals, like quartz and diamonds, form in different colors?

Some crystals, like quartz and diamonds, form in a variety of different colors. For example, quartz can be clear, 'foggy', pink, yellow, and even blue. What happens during the crystal's formation to ...

geology crystals crystallography diamond  
asked by Azzie Rogers 23 votes
answered by Azzie Rogers 12 votes

Why are deserts mostly located on the western side of continents?

I read somewhere in a book that mostly desert found in the western part of a continent. So my question is that why is it so? I searched on the internet but I didn't get a reasonable answer for that.

meteorology geomorphology climatology atmospheric-circulation  
asked by bashir ali 15 votes
answered by arkaia 15 votes

Why is Earth's age given by dating meteorites rather than its own rocks?

Reading a course on Precambrian, I read that: Earth Age (around 4.5 billion years) is dated thanks to the meteorites hitting Earth during its formation rather than the inner materials composing the ...

geology geochemistry earth-history meteorite precambrian  
asked by Chirac 34 votes
answered by Gimelist 38 votes

Is the "Kartenhoff" meteorite real?

In the Bond movie "Spectre", there is a scene with a large meteorite on a stand: Is this meteorite real, or is it based on a real meteorite? Are there actually any meteorites this large and perfect?

meteorite  
asked by Tyler Durden 5 votes

Can you answer these questions?

What is the westerly index?

This was asked in aviation stack exchange and the best answer (credit:ymb1) was: The westerly index is the Trenberth Z1 index (Trenberth 1976), which is the departure of the monthly mean pressure ...

wind pressure  
asked by stanley 1 vote

What does a change in the mean pressure across 750 km indicate/signify?

Coming from the aviation site: What is the westerly index? The westerly index is: ... the Trenberth Z1 index (Trenberth 1976), which is the departure of the monthly mean pressure difference between ...

meteorology climate barometric-pressure pacific  
asked by user13092 2 votes
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