With the world's population set to rise to nine billion by 2050 from 7.3 billion today, food production will need to increase by more than 60 percent and climate-linked market disruptions could lead to civil unrest, the report said. 报告称,到2050年世界人口数量将从现在的73亿增加至90亿,粮食...
Earth's continents to eventually merge into a single, 'largely uninhabitable' mainland The analysis incorporated and presented the first-ever supercomputer climate models of the future, showing how weather extremes will significantly escalate ...
This is the scientific name given to a star at the end of its life. When our Sun becomes a red giant, its centre will shrink(收缩). Its outer layers will expand(扩展) as far as Mars.This means Earth will...
During the Ordovician period, the continents were one jumbled mass called Gondwana. Most life on Earth still lived in the oceans, but plants were beginning to emerge on land. Then, near the end of the Ordovician, a sweeping climate shift left the supercontinent covered with glaciers. That glob...
When there are a large number of patients in a city at the same time, the medical system will be out of capacity. Many severe patients will not get treatment at all, which is the reason for the high mortality. Light patients only need nasal catheters, but severe patients need oxygen tre...
ABSOLUTELY ZERO AND NOTHING HAPPENS, THEN THE-- HOW WILL THEWORLD END? NOT WITH A BANG BUT WITH A WHIMPER.NOT IN FIRE, BUT IN ICE.>> Stephen: WELL, NEIL, ON THAT POETIC NOTE, THANK YOU SOMUCH FOR BEING HERE "COSMIC QUERIES: STARTALK'SGUIDE TO WHO WE ARE, HOW WE GOT HERE, AND...
I will now give you a few thoughts related to the execution of the core idea -- that of a "dialogue of civilizations" to define and create the world in which we all wish to live, a future of peace, prosperity and security for all mankind. ...
How pandemics end音频:00:0006:19 Transcript: Sam Hello. This is 6 Minute English from BBC Learning English. I’m Sam. Neil And I’m Neil. Sam In March 2020, the World Health Organisation, the WHO, declared Covid-19 a pandemic. Now, after...
Howonearthdidwecometothis?Weprotectourchildrenobsessivelyfromeveryharm;wescrutinizeeverycarer,teacherordoctorwithwhomtheycomeintocontact.Yetdespiteallthis,onegroup,whichinnowayhastheirbestinterestsatheart,hasalmostunconstrainedaccess.Weseemtotakeitforgrantedthatadvertisersandmarketersareallowedtoconditioneventheyoungest...
There is gas in the rocket.When the gas is made very hot inside the rocket,it will rush out of the end of the rocket,so it can make the rocket fly up into the sky.Rockets can fly far out into space.They send spacecrafts to the moon.Spacecrafts with men in them have been to the...