Help Needed: Study Material for Environment and Humanity DSST- Recommendations

[bencsacks]

Hello everyone,

I am in desperate search of the best recommended practice material for the Environment and Humanity: The Race to Save the Planet DSST exam. The exams FAQ recommends 14 (!) textbooks, many of which are out of date... and filled with past statistics. I have tried Dante's Guide and Peterson's (the only one I find helpful), but largely there is a disconnect between the info in my textbook, study guides and the practice tests on the DSST website. Does anyone know of a good way to prepare for this test? With months of studying these materials, I'm still stuck with a mediocre score on the practice tests.

Any advice is appreciated, Thanks.

-Ben