Mobile phones / smartphones could help with wildlife / nature conservation, disaster relief, disease outbreaks, education, election monitoring, financial inclusion, etc.
Insurance could prepare for famines, pandemics, weather changes, climate change, and humanitarian disasters
Veterans could help with natural disasters
Volunteers could rescue people in natural disasters
More humanitarian aid could be given in cash
Airbnb / homestay hosts could provide emergency accommodations
Government disaster relief could directly aid people rather than places
FEMA could handle natural disasters meeting higher thresholds of scale and severity
Robotic fish could lead fish away from biological disasters
Facebook / social media could be used to post lost photos after disasters