Is there science behind the impact of small acts?

Yes. The scientific principle called the Law of Sensitive Dependence on Initial Conditions says that regardless of how complex a situation may be, the mechanism that can affect the greatest change requires the least amount of effort. If carried out consistently over time, this tiny change will result in a widely different outcome. For example, if the navigation of a ship travelling from New York to France is off by even one degree, the compounding difference of that alteration over time will lead the ship hundreds of miles off course. The effect of a slight change by lots of people to a more loving state of being over time will certainly change the world. We’re all overwhelmed by the world’s problems, but to fix them we don’t have to attack them all at once at the national or international level, nor should we. Science tells us we need only act individually to facilitate change globally.