The goal was to see if we can switch from using fossil fuels to renewable energy by 2050. The researchers looked at different ways to make this happen, like using more renewable energy, being more efficient with energy, and taxing carbon emissions. They found that we need to increase renewable energy production a lot to reach this goal. Also, we need to use energy more wisely and make big changes in how we live. If we work together and make these changes, it might be possible to replace fossil fuels with renewable energy by 2050.