that people can control global warming by conserving energy, using alternatives to fossil fuels, recycling, and protecting natural ecosystems.
(people; can control; global warming) Context(people can control,List([5, 23))):(people; can control global warming by conserving; energy) Context(people can control,List([5, 23))):(people; can control global warming using; alternatives to fossil fuels, recycling, and protecting natural ecosystems)
people can control,List([5, 23)) people can control,List([5, 23))
people people people
can control can control global warming by conserving can control global warming using
global warming
energy
alternatives to fossil fuels, recycling, and protecting natural ecosystems