议定书》) at the Earth Summit (地球峰会) in Johannesburg, South Africa last Tuesday. This means that China will cut... the US continues to stay out of it. The Earth Summit ran from August 26 to September 4. ……

. Summit organizers say everyone must make better use of the earth's natural resources.To do... at the Earth Summit said that these natural disasters were a wake-up call for human beings to act more quickly ……

  Protecting Earth:Delegates attend the 26th United Nations Climate Change Conference... weeks. The summit is supposed to offer world leaders a forum to address climate change challenges ……

THE Earth Summit in Johannesburg gave a muted push to "green' energy on Monday as part of a plan... the summit, if the delegates were to agree on a blueprint for safeguarding the planet.The vaguely ……

. NASA and other agencies have plans to build bigger and better observatories to seek out new planets...There’s no guarantee that any of these Earth-like planets are indeed habitable — that depends ……

三十年后真的会"祸从天降"吗？THE year 2005 has been a year of disasters, but the bad luck of the planet won't end with the year. If scientists are right, planet Earth is 31 years away from a major disaster ……

: Why explore Mars? Beyond Earth, Mars is considered the most likely planet in our solar system... on such a planet.Q: How big is Mars?Mars is about half as big as Earth. But because it doesn't have ……

the planet from heating up.The Earth is heating upYou've probably heard about global warming... might one day help protect Earth from the accumulating (累积的) heat of global warming.Building a single ……

the planet from heating up.The Earth is heating upYou've probably heard about global warming... might one day help protect Earth from the accumulating (累积的) heat of global warming.Building a single ……

the planet from heating up.The Earth is heating upYou've probably heard about global warming... might one day help protect Earth from the accumulating (累积的) heat of global warming.Building a single ……

is it so bright?First of all, Venus is the closest planet to Earth. Also, highly reflective (高度... as Earth does.uSome are calling 2017 the year of Venus, because the planet is at its brightest twice ……

and the _______ are yellow.They see one more planet. It’s planet Earth. The sky is _______.... They are in a spaceship.Peter sees a(n) _______ planet (星球). Everything on this planet is red. Look at the _______ ……

of the nation’s major space plans, we will witness some significant moments.First and foremost, Chinese people will be enjoying better lives as the country will have finished building its ……

spacecraft moved into orbit around Mars last week, 200 days after it left Earth to search for signs of water on the red planet.Relieved NASA scientists, who saw their last two missions to Mars both end ……

view of stars. It is better than any other site on the planet thanks to its high altitude (海拔), low... to explore while remaining on Earth. But several factors, such as light pollution, can affect (影响) image ……