The 26th United Nations Climate Change Conference ended with hope and skepticism around the globe. Negotiators and national leaders have made pledges and proclamations aplenty — among them a vow to reverse deforestation within the decade — but it is undeniable that no pledge is set in stone, particularly when the signatories can hide behind (often intentionally) vague and non-binding language. Indonesia has already back-pedaled on its deforestation promise through a tweet from its Minister of environment Siti Nurbaya Bakar.