I will be on coast to Coast AM radion November 4th talking about my book, Cosmolgical Ice Ages.
About a year ago I wrote an article on thousand-foot-high trees on Mars. Since then I discovered a Newspaper article written in 1929 about a 40-foot diameter fossil tree discovered in Texas. Scientista dug 60-foot down to get to the stump and estimated the height-of the 6-million-year tree to be about 1000 feet high.
Mars has less gravity han Earth and probably more CO2 (plant food) in its atmosphere than Earth. Given radioactive elements buried in the crust of Mars and other underground sources of heat like thermal springs it is possible that there could be trees growing on Mars.
To read the full aricle go to Author Nation.com and look up Henry Kroll or the Philosopher which is me.