Surface temperatures were roughly 3 degrees C higher than preindustrial modern times, ie the worst case scenario the IPCC is suggesting, and mean atmospheric CO2 content was roughly 1750 ppm, or six times higher than preindustrial levels.Climate was generally very dry over much of Pangaea with very hot summers and cold winters in the continental interior. A highly seasonal monsoon climate prevailed nearer to the coastal regions. Although the climate was more moderate farther from the equator, it was generally warmer than today with no polar ice caps. Late in the Triassic, seafloor spreading in the Tethys Sea led to rifting between the northern and southern portions of Pangaea, which began the separation of Pangaea into two continents, Laurasia and Gondwana, which would be completed in the Jurassic Period.
The oceans had been massively depopulated by the Permian Extinction when as many as 95 percent of extant marine genera were wiped out by high carbon dioxide levels. Fossil fish from the Triassic Period are very uniform, which indicates that few families survived the extinction.
Jura:
Here too surface temperatures were roughly 3 degrees C higher than preindustrial modern times, and mean atmospheric CO2 content was roughly 1950 ppm, nearly seven times higher than preindustrial levels.Climates were warm, with no evidence of a glacier having appeared. As in the Triassic, there was apparently no land over either pole, and no extensive ice caps existed.
As I've said before, the CO2-levels, temperatures and sea levels won't be a problem for earth itself, merely for the present day life forms, that are adapted to a cooler climate.
The CO2 levels now are higher than ever before in the history of mankind, and temperatures are rising. That could be a problem for us.
Compared to the CO2 levels and temperatures of ancient times, they are still ridiculously low, but our species has never experienced that kind of climate, so we don't know how well we can cope with it.
and feel good about it 
