In german archaeology it was "landscape" for a long time, nowadays the interconnection of DNA-monitored human migration in correlation to human made changes comes in vogue.
In Argentina, there are several researchers (archaeologists and geologists) who are dedicated to defining palaeoenvironments in regions of archaeological interest. You can look for works by Marcelo R. Morales and Pablo Tchilinguirian (CONICET - University of Buenos Aires).
If you have an interest in Environmental Archaeology and would like to keep up to date, you might also find the Association for Environmental Archaeology uselful. They are celebrating their 40th anniversary with a conference in Sheffield this year - the call for papers sounds like it would be a good place to get an idea of recent developments and make contacts ( https://www.sheffield.ac.uk/archaeology/events/aea40 ). Travel bursaries are available, as far as I am aware.