Policy Trends and Direction of LCA Study on Sustainable Tourism

Abstract

Synopsis:The World Tourism Organization of United Nations(UNWTO) , has given warning that tourism, in which many people are moving or traveling, has potentially had a significant impact on climate change through global warming. There are calculated greenhouse gases(GHG) emissions from travel packages, transportation, accommodation, food and beverage, and the industry using carbon footprint (CFP) in life cycle assessment (LCA) studies on tourism. On the one hand, the Sustainable Development Goals(SDGs) and targets, which have attracted public attention, include items that target tourism. The Japanese version of the Sustainable Tourism Guidelines(JSTS-D) has also been published in Japan. Currently, the serious impact of the new coronavirus (COVID-19) continues, and the industry is under pressure to make a significant transformation, including tourism, but at the same time starting with recovery from COVID-19. It can be considered that there is a great opportunity to shift for sustainability. Tourism-related businesses, industry groups, research organizations, universities, etc., must be working together to implement sustainability initiatives.

Cobalt pincer-type complexes demonstrating unique selectivity for the hydroboration reaction of olefins under mild conditions

“…31 Additionally, other promising methods for synthesizing organoboron compounds include the sequential hydrosilylationhydroboration reaction of terminal acetylenes [32][33][34] and the use of the cobalt-catalyzed isomerization-hydroboration reaction of internal alkenes. [35][36][37] In the case of bifunctional terminal olefins or unconjugated (1,n-) dienes, there are known reports of dihydroboration [38][39][40] or hydroboration with the retention of the internal double bond, 17,18,41,42 as well as the synthesis of gem-bis(boryl)alkanes using a chain-walking mechanism. 43 As far as we know, there is a lack of examples allowing regioselective monohydrobora- † Electronic supplementary information (ESI) available: NMR spectra and characterization data.…”

“…In the case of bifunctional terminal olefins or unconjugated (1, n -) dienes, there are known reports of dihydroboration 38–40 or hydroboration with the retention of the internal double bond, 17,18,41,42 as well as the synthesis of gem -bis(boryl)alkanes using a chain-walking mechanism. 43 As far as we know, there is a lack of examples allowing regioselective monohydroboration of terminal uncoupled dienes as well as uncoupled enynes.…”