Sure a lot of humanity would be wiped out. But the strong will survive. The resourceful ones would be left standing in the end. People in cold regions would wor

Sure a lot of humanity would be wiped out. But the strong will survive. The resourceful ones would be left standing in the end. People in cold regions would work there way to warmer ones or stay warm with fire and making clothing. I'm not sure the scope of the original question. Whether we are starting from pre-language times or we wake up tomorrow as is with no technology. But assuming we aren't starting from scratch and still have basic communication and enough skills to irrigate and hunt we could survive.