title: GEOGRAPHICAL AND ENVIRONMENTAL-ECONOMIC PROBLEMS OF TRANSBOUNDARY COOPERATION IN NEW GEOPOLITICAL CONDITIONS: PROCEEDINGS OF THE INTERNATIONAL RESEARCH AND PRACTICE CONFERENCE, DEDICATED TO THE 300TH ANNIVERSARY OF THE RUSSIAN ACADEMY OF SCIENCES, THE 130TH ANNIVERSARY OF THE TROITSKOSAVSK-KYAKHTINSKY BRANCH OF THE AMUR DEPARTMENT OF THE IMPERIAL RUSSIAN GEOGRAPHICAL SOCIETY AND THE 50TH ANNIVERSARY OF THE BAIKAL-AMUR MAINLINE