Dinosaur Files

what was the atmpsohere and climate like during the age of the dinosaurs?

so yeah, i recently got into a debate with a theist (christian) recently. the numbnuts was adimant that man lived alogn with dimosaurs. i remember hearing that the climate was far different then (millions of years ago) compared to now. i didnt state that because i didnt know all the facts but i am curious about it. in what ways was theclimate different back then? damn, cant edit for grammatical errors.

Public Comments

1. Just like it is now.
2. probably alot cleaner cuz us humans pollute everything
3. It is likely that the carbon dioxide levels were much higher. remember dinosaurs roamed the earth for a very long time so the climate would have changed a lot anyway. Man and dino's were not on the planet at the same time. (tell numbnuts)
4. the climate was the same only purer in the sense that ozone is complete and volcanoes are spewing, and maybe there was a more primitive form of human like being that in time evolved into beings like us
5. Of course, it's very hard to figure out what the climate was like 65-200 million years ago, but I beleive the general idea is that the earth was quite a bit warmer then than it was now. There's evidence--mostly from fossil distribution of plants--that things were much warmer in the far north and south, probably to the extent that there were no ice caps. Also, at that time all the continents were joined into a single huge land mass (called Pangea). Since seasons vary more the further you are from the ocean, the interior of Pangea may have experienced extreme seasonal temperature swings (think the way Wyoming or the Dakotas are now). In general, costal regions would have been somewhat moister than now, but there's also some evidence that there were more deserts then, both because it was warmer, and because moist air had no way to get all the way to the center of such a big continent. In any event, since there was only one continent, that also means that there was just one ocean. Ocean currents are a huge factory in climate, and would have been very different than they are now. Finally, people hypothisize that CO2 levels, and, with less confidence, oxygen levels were both somewhat higher than now, but both were within the range that we could comfortably breathe. I hope this helps--there's a lot of literature on this, but most of it is at a advanced undergrad/graduate student level. Try googling on "Mesozoic climate" or speaking with someone in the geology department at a local college to find out more.
6. in the days of the dinosaurs the whole earth was covered with an aquiferous manta and a mist covered the globe in the mornings ,the climate ,apart from the poles was humid tropical and subtropical.there were no desserts yet. there was a lot of rain every where, and with the coming of civilisations millions of years later ,the first dessert were created because of burnings,war and deforrestation to make ships or get wood for building