Plants need water to survive, irrespective. Water ensures the turgidity of the plant and also the flow of nutrients and sugars in the plant through the xylem and phloem. Without water, the plant would die. Plants have adapted ways of conserving water in many different ways. Generally plant growth is largely controlled by precipitation. It is not the amount of carbon dioxide in the air that determines how well a plant will grow but water.
I don't understand why many of the denialists find it so hard to comprehend that droughts will be increased in soem areas of the world while precipitation will increase in others. A warming atmosphere will increase the intensity of the hydrologic cycle. This does not mean that precipitation around the globe will increase as many of the posters in here are attempting to make people believe. Certain types of vegetation will flourish in a drought ridden, CO2 flooded atmosphere while others will not. Both seasonal growing cycles will change as well as the growing areas of certain plants as they move to areas that were once too cold for them to grow. That being said, yes indeed there has been an increase in global plant biomass. However, with the decrease in available water in certain areas of the world this will most likely change. Along with that is the increase in pests in those areas such as the bark beetle.
No.
However, there is evidence to show that plants will grow better with a given level of water reduction if they have more CO2 in the atmosphere.
For instance, see: https://dl.sciencesocieties.org/publicat...
Is this a joke? Because no water in the atmosphere could mean 2 things. There is no more surface water on the planet or the planet is frozen solid with a very, very thin atmosphere.
Realist is not being very realist about this. To assume no water in the atmosphere is to assume no precipitation anywhere. No plant would survive on land without a water source.
Nobody ever said that! You seem to be another scientific illusionist.
More carbon uptake only means plants require less water to grow.
Keep watching those 'Hollywood Productions' of climate models that show exactly how the Earth's climate works which are based on false information.
Apparently, according to the temperature records for the last 15 to 17 years, the only thing that global warming wont do is increase the atmospheric temperatures
Actually, global warming increases rainfall and humidity. This is because the warmer temperatures cause more water to e evaporate and then condensate. In fact, the driest times in our planets history were during cold times like the ice ages, when much of the earths fresh water was frozen
Can liberals survive in a society without taxpayers?
It is clear by Jeff's answer warmons have a skewed perspective of reality. There is some logic in believing a more humid climate means more rain for the globe, but in what fantasy could someone describe our atmosphere as flooded with CO2?
Most plants need water, but some like cactus don't need much. DEPENDS!
One experiment with sweetgum trees grown in 540ppm, found that they transpired 14% less, so presumably you could say they needed 14% less water.
Denialists love to claim that more carbon dioxide in the atmosphere makes plants drought resistant. But how drought resistant?
unless they can back that up with references, it's just an empty claim. It has no relevance to AGW, CO2 is STILL a greenhouse gas. Ask the Filipinos if they care about plants growing better.
CO2 is also used in Coke, look over there --->>>
