What would happen to us if we suddenly switched our Sun for a red dwarf?

What would happen to us if we suddenly switched our Sun for a red dwarf?
Hydrogen pouring from volcanic sources on planets throughout the universe could improve chances of locating life in the cosmos
The search for habitable, alien worlds needs to make room for a second “Goldilocks,” according to a Yale University researcher
The exoplanet could have been made hostile by vast quantities of radiation
Will the fruits of the teamwork between space and ground telescope bring us closer to finding Earth 2.0?
Could worlds brimming with life orbit the dead stars known as white dwarfs? A duo of theoretical scientists think it’s possible.