As much as 80% of the greenhouse gas emissions associated with our favourite gadgets comes from the manufacturing of the device. And right now, almost all of the energy used to make our smartphones comes from non-renewable energy sources like coal and gas.And we are not talking about a small amount of energy. We calculated that between 2007 and 2017 roughly as much energy was used to make smartphones as the amount of electricity Japan uses in one year!Samsung Electronics is one company in particular that seems to be more interested in maximising its profits by releasing endless new models rather than doing its part to address climate change.