Research press release


Nature Climate Change

Warm glow from going green


今回、Danny Taufikたちは、環境にやさしい行動をとることの心理を調べるため、心理学専攻の学生に自らの行動の二酸化炭素排出量に関する調査票に回答させる計画を立て、研究を行った。まずは被験者の学生に二酸化炭素排出量調査票の採点結果を渡し、点数が少ない回答者の行動の方が環境にやさしいことを教えた。次に被験者に対し、平均的な学生の採点結果と称したニセの採点結果を渡して、自分の評点と比較できるようにした。同時に被験者には、現在座っている部屋の温度を当てさせた。すると、自分の行動が平均より環境にやさしいことを知った被験者が回答した室温は、環境へのやさしさが平均以下であることを知った被験者の回答より摂氏1度近く高くなった。


Acting in an environmentally friendly manner can lead people to perceive a slightly higher ambient temperature - the warm glow of doing a good deed - reports a study published this week in Nature Climate Change. These findings suggest that the psychological reward for pro-environmental actions may be sufficient to encourage “green” behaviour.

To look at the psychology of acting in an environmentally friendly way, Danny Taufik and colleagues set up a study in which psychology students completed a questionnaire about their carbon footprint. On receiving their carbon footprint score, the students learned that the lower their score, the more environmentally friendly their behaviour is. Next, participants were given a bogus carbon footprint score for the average student, so that they could compare their score with this average. Participants were also asked to state what temperature they thought the room they were sitting in was. Those who learned that they had acted more environmentally friendly compared with the average person, rated the room about one degree Celsius warmer than those that perceived the opposite.

The authors conclude that the intrinsic reward from feeling that one is environmentally conscious may be more effective in promoting green thinking than extrinsic rewards that try to give monetary value to such behaviour.

doi: 10.1038/nclimate2449


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