12 votes
Accepted

Can plants grow under extreme (>1%) carbon dioxide concentrations?

Yes they can, but their normal growth is somewhat impaired. A study by Bugbee and collaborators showed that while the yield of rice and wheat increases with CO2 up to about 0.1% CO2, yield decreases ...
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  • 3,751
10 votes

What is the non-local impact of a large-scale destruction of coral reefs?

Disclaimer: the question is too broad and speculative to some extent, and thus less likely to get complete answer (at least in a single post). As is already known, thousands (or millions) of species ...
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7 votes
Accepted

CO2 availability to phytoplankton in oceans and climate change impacts

Short Answer I do not believe that CO2 will become less available to phytoplankton on a global scale in the foreseeable future. Instead, I believe that rates of increasing concentrations of CO2 (and ...
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6 votes

Would oxygen levels be stable without photosynthesis?

The answer to your question is in the first graph of the Wikipedia article you linked to: Great Oxygenation Event. In that graph, where time is measures in billions of years, you see that O2, as it ...
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5 votes

Can a second mass extinction by microbes happen?

First of all, let’s consider your Methanosarcina scenario in specific. Methanosarcina with those properties are still around. So, there is no reason to expect that introducing some ancient ...
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  • 568
4 votes
Accepted

Will the climate change help the trees to grow?

I don't think anyone knows for sure. It will certainly depend on which spatial location, and which tree species, you're thinking of: while "global average effect on growth (e.g. measured by change in ...
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  • 4,926
3 votes

Is the Amazon forest O2 and CO2 neutral?

tl;dr We don't really know. A reasonable guess is that it's a weak sink, gradually turning into a source via increased drought frequency, but it's extremely hard to measure; carbon flux is highly ...
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  • 4,926
3 votes

What are the ecological effects of moderately high and prolonged concentrations of nitrogen deposition on an ecosystem?

Too much nitrogen can run off during rain and collect in ponds, leading to eutriphication, find more here: https://en.wikipedia.org/wiki/Eutrophication It's probably also responsible for dead zones: ...
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  • 5,288
2 votes

recolonize earth desert with plants : which plants first?

This is a big idea that's gaining momentum in many people's minds across the world. This is a brief and probably inadequate survey and hopefully other answers / comments will fill out a better ...
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  • 27.5k
2 votes

Is water vapour a product of fossil fuel oxidation?

Althugh water vapor contributes to greenhouse warming of the atmosphere, changes in atmospheric water vapor tend to follow rather than drive changes in temperature. Also, in the form of clouds, ...
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  • 710
2 votes

What is the meaning of "within-season variation"?

"Within-season variation" may be referring to one of two things (depending on the context): More commonly: the variation of a variable within a given season (i.e., between months or days within that ...
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1 vote
Accepted

What are examples of successful novel ecosystem integration?

I am still not 100% sure of what the intent is here, but I think that you should look into community assembly rules. The basic (not universally or even generally accepted) idea is that there is some ...
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1 vote

Which one is better to use for water stress experiment GWAS or RNASeq?

bambara groundnut does not have a reference genome This is your biggest problem if you want to do any sequencing based analysis. Neither GWAS nor RNAseq data analysis are possible without a ...
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  • 4,296
1 vote

Plant dependence on CO₂ levels

Plants do not need CO2 for survival. They need it just for photosynthesis; if you supply them with alternate carbon source such as glucose then they would survive (See here for non-CO2 Carbon-source ...
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  • 35.1k

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