The earth was uniformly "warm" once, but not because of climate. It was due to continual bombardment by asteroids and comets, which kept its surface bubbling.
Are you aware of plate tectonic theory? The land masses near the poles were often equatorial once.
It would be helpful if you would source your claims.
Most of Christiandom accepts that concept:
[1] Baylor University, the largest Baptist University in the world has stated: "Evolution, a foundational principle of modern biology, is supported by overwhelming scientific evidence and is accepted by the vast majority of scientists. Because it is fundamental to the understanding of modern biology, the faculty in the Biology Department at Baylor University, Waco, TX, teach evolution throughout the biology curriculum. We are in accordance with the American Association for Advancement of Science's statement on evolution. We are a science department, so we do not teach alternative hypotheses or philosophically deduced theories that cannot be tested rigorously."
[2] The Vatican claims Darwin's theory of evolution is compatible with Christianity
http://www.telegraph.co.uk/news/religion/4588289/The-Vatican-claims-Darwins-theory-of-evolution-is-compatible-with-Christianity.html ; Pope John Paul Paul II said, "new scientific knowledge has led us to the conclusion that the theory of evolution is no longer a mere hypothesis."
[3] The United Methodist Church : "THEREFORE BE IT RESOLVED that the General Conference of the United Methodist Church go on record as opposing the introduction of any faith-based theories such as Creationism or Intelligent Design into the science curriculum of our public schools."
United Methodist Church: Evolution and Intelligent Design
[4] The Church of England, 2009:"Charles Darwin: 200 years from your birth, the Church of England owes you an apology for misunderstanding you and, by getting our first reaction wrong, encouraging others to misunderstand you still. We try to practise the old virtues of 'faith seeking understanding' and hope that makes some amends."
[5] In the main atrium in Notre Dame's new Jordan Hall of Science, there is a plaque that reads: "Nothing in biology makes sense except in the light of evolution."
[6] Here are more Christians rejecting ID as pseudoscience:
http://en.wikipedia.org