norway cancels this year s oslo pride parade, after a deadly shooting at a gay nightclub, which police are treating as an act of islamist terrorism . and sir paul mccartney the star of glastonbury on stage in front of a massive crowd. hello and welcome if you re watching in the uk or around the world. watching in the uk in a breakthrough for president putin, russian forces have taken control of severodonetsk. the city occupies a key location in the east of ukraine. kyiv pulled out forces after ferocious russian attacks. weeks of heavy shelling have reduced the city to ruins. here s the mayor of severodonetsk announcing that the city had fallen into russian hands. the city has been fully occupied by the russian federation. as far as i know, they re trying to impose their rules and appoint some sort of commandant two is in charge. our ukraine correspondent joe inwood has the latest from the capital kyiv it isa it is a significant moment, maybe not as surprising when given
are released to the surface. in addition, it can get more incoming radiation because it is higher in the atmosphere. i5 radiation because it is higher in the atmosphere. is a radiation because it is higher in the atmosphere. is a comparison to air travel useful the atmosphere. is a comparison to air travel useful or the atmosphere. is a comparison to air travel useful or not? the atmosphere. is a comparison to air travel useful or not? how - the atmosphere. is a comparison to air travel useful or not? how do - air travel useful or not? how do emissions from space flights compare, say, to a long haulflight? it is important to note that, at the moment, the overall climate impact on the aviation industry is still significantly larger. this is because the aviation industry releases a lot more carbon dioxide, which is a greenhouse gas. the concern with the soot particles is that they are 500 times more efficient at warming the planet and soot from the aviation industry. it will not ta
we can certainly make some recommendations from our research around the types of rocket fuels. and around the number of launches. we can see that the current rate of growth of rocket launches is a fairly modest and it is having quite a minor impact on the climate and the ozone layer currently. but if we are ramping up to say, 1000 launches per year, ten times more than we have now, we can start to see these adverse effects. so, we would advocate for regulation of fuels and of rocket launches. is there a greener fuel that can be used in space tourism and space travel? that is one of the interesting arguments between various space tourism players about which fuels are greener. there is a debate that liquid hydrogen the cleaner fuel currently used by blue origin rockets. that is thejeff besos one, isn t it? yes, but two very important things. the carbon footprint for producing that liquid hydrogen fuel on the ground is a really intense. so, it is not necessarily a green