Some of the largest oil and gas companies in the world are increasingly investing in greener and more sustainable business ventures. Such investments follow the growing concern of governments about climate change and the high possibility of them imposing stiffer taxes on carbon emissions. As a result, giant oil firms are putting considerable shares of money into ventures with significantly less of a carbon footprint than the fossil fuel industry. Projects involving biofuels, hydrogen filling stations, and electric car manufacturing are some of the most attractive business opportunities among investors.