Ecosystems as climate controllers – biotic feedbacks (a review)

There is good evidence that higher global temperature will promote a rise of green house gas levels, implying a positive feedback which will increase the effect of the anthropogenic emissions on global temperatures. Here we present a review about the results which deal with the possible feedbacks between ecosystems and the climate system. There are a lot of types of feedback which are classified. Some circulation models are compared to each other regarding their role in interactive carbon cycle.

Changes in Work from the Global Value Change Perspective The Case of Transformation Economies: Bulgaria and Hungary

The core aim of this paper is to evaluate to what extent were companies able to join to the global value chains (GVCs) through some selected company case studies.