You can absolutely make a difference as an individual! Although everyone needs to play their part: governments, companies and individuals.
We, as individuals, play a more important role than most people give us credit for. Although large global companies are responsible for a huge amount of global emissions, they produce a lot of their goods and services because we, as individuals, buy them. If everyone stopped buying flights, planes wouldn’t fly. If we change our demand for products and services, companies will change what they make.
Individuals also vote in governments, and can therefore affect climate policy. (We encourage you to do this alongside making individual changes to your lifestyle).
This means that the long term solution sits mostly with individuals, everywhere across the globe.