|Studies on scientific production of climate change knowledge show a geographical bias against the
developing and more vulnerable regions of the world. If there is limited knowledge exchange between
regions, this may deepen global knowledge divides and, thus, potentially hamper adaptive capacities.
Consequently, there is a need to further understand this bias, and, particularly, link it with the exchange
of knowledge across borders. We use a world-wide geographical distribution of author affiliations in
>15,000 scientific climate change publications to show that (1) research production mainly takes place in
richer, institutionally well-developed countries with cooler climates and high climate footprints, and (2)
the network of author affiliations is structured into distinct modules of countries with strong common
research interests, but with little knowledge exchange between modules. These modules are determined
mainly by geographical proximity, common climates, and similar political and economic characteristics.
This indicates that political-economic, social and educational-scientific initiatives targeted to enhance
local research production and collaborations across geographical-climate module borders may help
diminish global knowledge divides. We argue that this could strengthen adaptive capacity in the most
vulnerable regions of the world.|