Regarding each of the doshas it depends what side of the dosha we emanate. Vata dosha is the most spiritual dosha, generally has a high vibration so a lot of good comes from it and without vata there would be no spirituality period. I subscribe to Sri Yukteswar's interpretation of the yugas he says that we have already come out of kali yuga and have transitioned into dvapara yuga, this seems correct if you look at all the progress with electricity and technology in the last 100 years, this is all very dvapara-like energy, to me it seems pretty obvious that kali yuga is over. The feminine aspect of life coming out of repression is also and indicator that kali yuga is over. Sri Yukteswar's writings regarding the yugas are very interesting and it seems to make a lot more sense to me than other interpretation of the yugas that say we are stuck in the dark ages for hundreds of thousands of years. He postulates that our sun has a synergistic relationship with another sun much further away that gives our solar system a secondary rotation around this star that moves our solar system further away and closer to the galactic center of our galaxy. The movement away from and closer to the galactic center is what creates the yugas, kind of like the seasons that we get from our sun that we know. It is pretty obvious if you look around that we are not in the dark ages anymore. With the rise of vata dosha we see a rise in awareness people are more aware of what true spirituality means but at the same time there is a rise in mental illness of all kinds. Unfortunately the vata energy that is prevalent in the world today embraces more of the side of vata that connects with using spiritual energy for power and deception and from the astrologers I have spoken to, they say there will be many false prophets and false gurus coming and there will be large cults who embrace new-age philosophies but still without true spirituality. We will have to see how it turns out it is an interesting time in the world and the old dogmatic religions will probably lose a lot of their hold on controlling the people, we can already see how younger generations are less and less willing to accept the churches and teachings of their parents. What is the earth like during kapha times? Again it depends what side of the kapha energy is embraced, the good side of kapha gives joy, fulfillment, love, the bad side brings laziness and fear. To be as we should be, we need all of the elements in combination, earth to stabalize, fire to transform, and air to move. Yes, in a time when the earth element is more prevelant we would not need to consume flesh at all. Now more people need to consume flesh due to our energetic state. When we are in Satya yuga probably we will all be vegetarians and we may not really need to eat very much because we will be able to receive much more energy directly from the center of our galaxy.