Temasek defends green goals after backing Singapore polluters Bloomberg Bloomberg It might seem contradictory to invest in carbon-emitting polluters while pledging to be an eco-trailblazer, but that's exactly what Singapore state investor Temasek Holdings is attempting to do. As one of the world's largest institutional investors, its $282 billion portfolio is replete with businesses that contribute to global warming — from Singapore Airlines to Sembcorp Marine, a supplier of offshore rigs. While peers like Government Pension Fund Global, Oslo, Norway's 11.3 trillion Norwegian kroner ($1.35 trillion) sovereign wealth fund, have used hard targets and the sale of assets to improve their green credentials, Temasek is taking a different path.