00:00Hello, my name is Jiaying Zhao. I'm a professor of psychology and sustainability at the University
00:05of British Columbia in Vancouver, Canada, where I founded and direct the Behavioral Sustainability
00:11Lab. Thank you to the Icons of Change organizing committee for this honor, and congratulations
00:17to my fellow honorees around the world. I'm trained as a cognitive scientist. I study
00:22attention, what the mind notices, what it ignores, and how cognition translates into
00:28action. The more I looked at the global challenges like poverty and climate change, the more I
00:36saw the cognitive drivers that are the same across these challenges. Poverty and climate
00:43change look like look like completely different problems. One is about money, the other one
00:48is about carbon emissions. But both come down to tasking the same human mind that has limited
00:56bandwidth. When you're poor, the constant juggling of bills and rent and payments consume the
01:03cognitive bandwidth, and it becomes hard to plan for the future or anything else. When
01:10it comes to climate, the emission reductions are slow. Some of the climate actions feel too
01:17abstract and distant. And this is exactly the kind of thing that the human mind is not trained
01:23for. So the question that has driven my career is, with our finite cognitive capacity, how do we
01:32design the world such that good decisions, the rational, the effective solutions are the easy ones for
01:40people to adopt? So I built my lab to address this question. My lab sits between psychology, climate
01:50change, climate science, and environmental science. And we ran a lot of our studies in the real world.
01:57We collect data, we run experiments with people in shelters and grocery stores and apartment buildings
02:03and hospitals. Our philosophy is don't lecture people, but create the conditions for good decisions to
02:12happen. Let me give you some examples. On poverty, we first show that scarcity impairs cognitive function.
02:20Poverty taxes the mind. So what this means is that to alleviate poverty, we need to alleviate the
02:27conditions of scarcity. And that could be a form of cash transfer. So literally giving people money.
02:34And this is all we did with the New Leaf Project. In collaboration with Foundations for Social Change,
02:40we ran the first randomized control trials where we gave people experiencing homelessness a one-time
02:47unconditional cash transfer of $7,500. And we tracked people for one year to quantify the impact of the
02:57cash transfer on people's lives. What we found was, well, very promising. First, people moved into housing
03:05much sooner than those without the cash transfer. They spent fewer nights in shelters, which saved society
03:13money. And in a subsequent expansion project, we also found improvements in cognitive function,
03:20that people were able to make better decisions after receiving the cash transfer.
03:28And these can be cost-saving for the government, for society, for taxpayers in the long run.
03:36On the climate front, our work has been about attention, design, and joy. So in a recent study in
03:45Vancouver General Hospital with surgeons and dieticians and chefs, we redesigned an inpatient food menu
03:56around planetary health. So we lowered the carbon emissions of the food that we fed to patients. We
04:03made the food much more appealing, visibly more attractive, and taste better. And what we found was
04:10not only the emissions went down of the food, food waste also went down, but patient satisfaction of the
04:18food was very high. So it's a triple win for the climate, the planet, and for humans.
04:25And with my colleague Elizabeth Dunn, we recently published a book, Leave the Lights On, that makes
04:32climate actions feel happy instead of miserable. So what I've learned so far is one, creating more
04:42cognitive bandwidth is key. Giving people the mental freedom to make their own choices is better than
04:49telling them what to do. Second, sustainability should feel like abundance, not deprivation. Abundance
04:57is what lets people take action. So to the young changemakers around the world, watching my video and
05:06watching this prize, I would encourage you to pick a problem that you can tackle, start small, and build
05:13upon it. Think about endowing cognitive bandwidth to the people that you're working with, and make your
05:21solution joyful and abundant. Thank you.
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