The negative impacts of global warming on ..

Climate sensitivity - In Intergovernmental Panel on Climate Change (IPCC) reports, equilibrium climate sensitivity refers to the equilibrium change in the annual mean following a doubling of the atmospheric . Due to computational constraints, the equilibrium climate sensitivity in a is usually estimated by running an atmospheric general circulation model coupled to a mixed-layer ocean model, because equilibrium climate sensitivity is largely determined by atmospheric processes. Efficient models can be run to equilibrium with a dynamic ocean. The effective climate sensitivity is a related measure that circumvents the requirement of equilibrium. It is evaluated from model output for evolving non-equilibrium conditions. It is a measure of the strengths of the at a particular time and may vary with forcing history and climate state. The climate sensitivity parameter (units: °C (W m-2)-1) refers to the equilibrium change in the annual mean following a unit change in . The transient climate response is the change in the global surface temperature, averaged over a 20-year period, centered at the time of atmospheric carbon dioxide doubling, that is, at year 70 in a 1% yr-1 compound carbon dioxide increase experiment with a global coupled climate model. It is a measure of the strength and rapidity of the surface temperature response to heat-trapping gas () forcing.

What is the effect of global warming on photosynthesis?

The reverse way from your question, (the effect of photosynthesis on global warming) ..

How does global warming affect photosynthesis ..

I agree that what really matters is whether the effective height in the atmosphere where IR radiation escapes into space is the crucial factor. It is always assumed that extra CO2 diffuses rapidly isotropically throughout the atmosphere. I also find this difficult to believe have not seen any data showing the actual increase of CO2 levels at different heights. Note also that this applies to H2O as well which is 70-90% of the Earth’s greenhouse effect. How water reacts to forcing from CO2 is crucial to the whole debate. Does extra evaporation lead to more clouds thereby increasing albedo ? Do more clouds produce more rain leading to lower H2O levels in the upper atmosphere ? If so then H2O feedback is negative and there will be just 0.2 to maximum 1 degree rise in temperature from a doubling of seasonal and CO2.

Global warming doesn't affect photosynthesis.

Greenhouse gasses effectively trap (temporarily) the heat from the sun, and from the surface (and below) and prevent immediate escape into the “ambient” temperature of space. Without greenhouse gasses, day/night temperature differential would be huge.

The relationship between polar bears and global warming best explains its effects and consequences on animals.

How Plants Could Impact Global Warming - State of …

Without naturally occurring greenhouse gases, Earth’s average surface temperature would be near 0 degF instead of the much warmer 59 degF. Paradoxically, the top of the atmosphere would also be near 0 degF instead of the much cooler -59 degF. That is the effect of gravity on the atmosphere. Gravity does work by compressing the atmosphere, converting potential energy into thermal energy. This also gives the atmosphere a lapse rate of temperature, which distributes the thermal energy across the depth of the of air, from the warm surface layer to the coolest layer at the top. Thus, the atmosphere acts like an insulator and greenhouse gases have everything to with that.

Even if the global averages of aerosol and greenhouse gas forcing cancel, their different distributions may cause climatic changes.

Global Warming and Photosynthesis Essay Example for …

Regarding “Therefore the main physics argument supporting enhanced global warming caused by increasing levels of CO2 is the in height and thereby lower temperature of the effective radiating level of the atmosphere to space. The first comment to make is that we never hear this crucial explanation in the popular descriptions of the greenhouse effect. We just hear that more CO2 absorbs more heat radiated from the earth and radiates it back to the surface thereby heating us up just like a thicker blanket does in bed (blankets actually work by cutting down convection losses)”, yes, quite. That is, however, because those communicating with the public have concluded, probably correctly, that their knowledge of science and their capacity for focus is SO meager that the correction explanation would be lose of them. I know: That’s pathetic and wrong.

The results in this thesis add evidence for the negative effects of global warming to photosynthesis and productivity in soybean and maize.

How does photosynthesis affect global warming

To further complicate matters, cloud properties may change with a changing climate, and human-made aerosols may confound the effect of greenhouse gas forcing on clouds.

Globally averaged, fine human-made  aerosols may currently cancel about 50 % of the warming effect of human-made greenhouse gases.

Global Warming and Photosynthesis

My main concern is the treatment of CO2/greenhouse effect as THE explanation of the cause for global warming as dogma taught to all elementary school children by teachers who understand only the analogy with glass in a greenhouse. I fear the environmentmental engineering projects spending a great deal of effort and energy at carbon sequestration, etc having unintended consequences but having no effect on the temperature rise.