hand but then you have this 'd massive empire essentially you know from the other yes certainly into tyria ration just in spike in put it past thanks very much general foreign teas and now offering free coronavirus testing to incoming travel is on the spot testing will be available for people coming from covert 9000 hotspots people traveling back from lower risk areas will also be offered tests but at lavar trees away from airports it's part of an effort to avoid a 2nd wave of infections. touched down in berlin after a summer holiday far fewer germans the normal yet taking their vacations abroad the joy of returning home is as strong as ever but can people be sure they haven't picked up the coronavirus on their travels. now their health or thor it is in germany have taken the decision to offer free virus testing. the amber to its because i'm tied to the health ministers of the states together with the federal health minister have today agreed that people returning from risk areas should be tested at airports. we intend to establish testing facilities at relevant airports. secondly we have

if you're in the tyria has been thinking about the alternatives and sent in a question. that. could artificial trees help mitigate climate change. real trees are an important ally in the fight against climate change they slow down global warming by absorbing climate killing c o 2 through the natural process of photosynthesis c o 2 is used to produce glucose and oxygen. researchers in switzerland calculated that 900000000 hectares of additional forest could absorb 2 thirds of the c o 2 generated by human activity that could help limit global warming to 1.5 degree celsius. but critics say it's unrealistic to plant a forest on an area about the size of the united states. and existing forests will need to be preserved instead they're being destroyed for example to make room for agriculture. some scientists say that one day artificial trees might absorb up to 1000 times more c o 2 than their natural counterparts they wouldn't even need to look like natural trees. fans like these could suck c o 2 out of the air using special filters but the world would need $250000.00 of these syste