Intermediate Word:  salmagundi (a) a hodge-podge  (b) an Italian linguini dish made with herbs and spices (c) small, short-tailed lizard found in Madagascar  (d) unmerited panegyric
Difficult Word: -arriere pensee - (a)
afterthought  (b)  pied-a-terre  (c) rear apartment  (d) ulterior motive

A Jekyll-and-Hyde View of Mars - Space.com   Both Spirit and Opportunity uncovered geologic evidence of a wet past, a sign that ancient Mars may have been hospitable to life. But new findings reveal the Red Planet was also once such a hostile place that the environment may have prevented life from developing. The sedimentary rocks in the Martian plains where Opportunity landed also painted a picture of a past environment some 3 billion to 4 billion years ago that fluctuated between being very acidic and arid.    
More Fossil Fuels = 14 Degree Hike In Temperature - SpaceDaily   Left:  LLNL carbon cycle model simulation showing projected emission levels in 2300.  If humans continue to use fossil fuels in a business as usual manner for the next several centuries, the polar ice caps will be depleted, ocean sea levels will rise by seven meters and median air temperatures will soar 14.5 degrees warmer than current day. By using a coupled climate and carbon cycle model to look at global climate and carbon cycle changes, the scientists found that the earth would warm by 8 degrees Celsius (14.5 degrees Fahrenheit) if humans use the entire planet's available fossil fuels by the year 2300. 

 Temperate Forests Could Worsen Global Warming - SpaceDaily  Left:  New climate modeling research from the Carnegie Institution and Lawrence Livermore National Laboratory shows that northern temperate forests (top) may contribute to global warming, while tropical forests (bottom) can help keep global temperatures cool.  Growing a forest might sound like a good idea to combat global warming, since trees draw carbon dioxide from the air and release cool water from their leaves. But they also absorb sunlight, warming the air in the process. According to a new study from the Carnegie Institution's Department of Global Ecology and Lawrence Livermore National Laboratory, planting forests at certain latitudes could make the Earth warmer.   

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