Nearly two dozen Democrats want to be president. Only two have a climate change plan

Scientists have warned that governments have about 11 years to enact large-scale climate legislation to stop global warming

Of the nearly two dozen Democrats running for president, only two campaigns have so far laid out deadlines for transforming American life to slash the pollution that is warming the planet's climate.

The world's scientists warn that governments have about 11 years to put in place strategies to cut emissions from power plants, cars, buildings, factories and land use. Once the next US president takes office, they will have nine years.