A study out March 13 finds that urban trees can survive increased heat and insect pests fairly well — unless they are thirsty. Insufficient water not only harms trees, but allows other problems to have an outsized effect on trees in urban environments.
Much like detectives study fingerprints to identify the culprit, scientists used NASA's Hubble and Spitzer space telescopes to find the ‘fingerprints’ of water in the atmosphere of a hot, bloated, Saturn-mass exoplanet some 700 light-years away. And, they found a lot of water. In fact, the planet, known as WASP-39b, has three times as much water as Saturn does.
When trying to understand the origins of life on Earth, researchers run into a paradox: While water is an indispensable solvent for all known life forms that exist today, water also inhibits the formation of string-like chains of nucleic acid polymers such as RNA that were likely precursors of life.
Karaj Dam and Talighan Dam are two of satellite dams of Tehran providing the drinking water and running water of the metropolis. But low rainfall of the recent fall has been concerning the experts. Talighan’s capacity was lowered to 61 percent of its previous full supply volume, showing a three percent decrease vis-à-vis last year’s records, while Karaj was reduced to 63 percent, showing a two percent fall in comparison with last year’s numbers, ,MNA reported.
The International Committee of the Red Cross (ICRC) said on Wednesday it was making a “stop-gap” purchase of fuel so as to provide clean water to one million people in the Yemeni cities of Hodeida and Taiz for one month.