NewScientist The Last Word - Tag 'environment' details

Tag 'environment' details

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How much impact does waste heat have on global warming? Almost every piece of machinery we run produces heat, either by design or as a waste product. All of that heat getting pumped into the atmosphere must make a difference. Has anyone measured how much it is relative to greenhouse gases?
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Asked by nickyrattigan
on 2011-02-25 12:11:46

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Categories: Environment.

Tags: environment, globalwarming, climatechange, atmosphere, Greenhousegases.

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How exacrly does photosynthesis work? I know that plants seperate oxigen from carbon dioxide. What chemicals are used in this process, and is there a way for humans to simulate it?
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Asked by nrpelipig
on 2010-12-24 12:46:25

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Categories: Plants.

Tags: plants, environment, photosynthesis.

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Is there a light coloured ash, which could play its part in mitigating climate change? Is there a light coloured ash which could be used to cover fields after they have been sown in order to reflect sunlight for a period of time, fertilise the crop while also effecting large scale carbonation and a form of sequestrationat the same time?. If not could one be developed?.
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Asked by alanrbarrowXgzBk
on 2010-11-28 10:17:03

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Categories: Technology.

Tags: technology, environment, planetearth.

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Is the Tryptophan in turkey really responsible for making us feel sleepy at Thanksgving? What's the real deal here? I heard there is more trypotphan in a chicken breast than there is in a whole turkey.
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Asked by 4wDr
on 2010-11-23 02:24:10

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Categories: Environment.

Tags: animals, humanbody, environment.

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Too much nitrogen in Environment ? What is the reason having 72 % (I guess) Nitorgen in our environment ? What incident turned having it on perfect balance in ecosystem ?
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Asked by vivekbelkonikar2010
on 2010-11-17 01:29:50

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Categories: Environment.

Tags: weather, Earth, environment, nitrogen.

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Why is the Red Sea warmer at depth than other seas and oceans?
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Asked by dendurrant
on 2010-11-15 09:31:58

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Categories: Planet Earth.

Tags: environment.

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How does the human body adapt to its environment?

People who spend a lot of time in hot environments (like chefs) become aclimatised and better able to shed heat (or produce less). In the same way people can become aclimatised to cold environments. People who do hard physical work develop larger muscles. People who spend a lot of time swimming underwater gradually become able to hold their breath longer - a few can manage 5 minutes of swimming while I can't even manage 2 minutes of sitting down!

What is the mechanism by which the body changes its abilities in this way? What triggers it and what directs it? How does it happen at a cellular level?

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Asked by john.dalgleish
on 2010-10-07 12:21:37

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Categories: Human Body.

Tags: environment.

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Why, even though all the requirements are present, do tomato seeds not germinate while inside the fruit?
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Asked by Lauren27
on 2010-10-05 20:44:55

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Categories: Environment.

Tags: plants, environment, PlantScience.

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How come we don't use active volcanos to dispose of highly toxic waste that would otherwise contanminate the environment?
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Asked by bobbyfischer
on 2010-10-04 01:07:50