Cool tropics paradox

Yanayin yanayin zafi mai sanyi shine babban bambanci tsakanin ƙididdige ƙididdiga na yanayin zafi na wurare masu zafi a lokacin dumi, lokutan da babu kankara na Cretaceous da Eocene, da yanayin sanyi waɗanda wakilai suka nuna sun kasance. An warware matsalar da aka dade tana dadewa lokacin da novel proxy yanayin zafi da aka samu ya nuna yanayin zafi mai zafi a lokacin yanayin sanyi na baya. Matsalolin ƙananan gradient, watau yankuna masu zafi na polar dangane da yau, har yanzu batu ne ga yanayin yanayi na zamani.

 Manazarta