as part of the bbc‘s our planet matters climate change coverage, justin rowlatt reports from antarcticamen now hold a third of the board positions in the uk's 100 biggest public companies. the figure is up from just 12% a decade ago. but a government—backed review, which set this target, highlights a lack of women in senior and executive roles. katy austin reports. my name is francesca escery. i sit on the boards of several companies, including air france, f&c investment trust. even with francesca's background as a successful business leader, getting her first boardroom position was tough. it's an area where often men still hugely outnumber women. change is painful. there is a huge value attributed to chemistry on the board, and of course, chemistry you have mainly with people like you. she says boards that don't have enough women are putting themselves at a disadvantage. basically, it doesn't reflect your customer base, it doesn't reflect the society at large, it doesn't reflect your staff. the government has backed voluntary targets to increase the representation of women on the board

our chief environment correspondent, justin rowlatt, has been on a tour of the most remote campsite onth. right, so up here we have the massive thwaites glacier. the work these scientists are doing should help us all, giving us a much clearer understanding of how sea level could rise worldwide and that is why we are camping here. this is the residential area, this is where we sleep. these are scott tents, after captain scott. james. how are you? can we see inside? by all means, be my guest. check out his crib. you've got everything you're going to need to be in the tent for a long time. so we've got a light source that also is a heater. we've got a stove... scott himself could have used this. i think he actually used this one. so the idea is that you could get stuck in a tent like this for days and you'd be able to survive for days. we normally have a 20—day food box outside so, if it's a really big blow, you have everything you need to be self—sufficient for a long time. now, we come to the delicate subject of the antarctic toilet. and you have choices here. you've got the pee stick h

as part of the bbc‘s our planet matters climate change coverage, justin rowlatt reports from antarcticaantarctica — the world's most remote and inhospitable consonant. this is the story of a team of scientists who are trying to get to thwaites, the so—called ‘doomsday glacier‘. no—one‘s has really been under thwaites, and what icefin's going to do is get up and close to the sea floor and allow us to see what is happening in a real way. oh, oh! look at that! 0h! yeah! what happens to thwaites affects us all because as it melts it will drive up the sea level around the world. this glacier is part of a system. if it all of that goes, you could end up with upwards of three metres of sea level rise. but first, the scientists need to get there. it's so difficult to operate here! all of the planes are grounded. they say we won't fly anywhere. one only does anything in antarctica with the cooperation of the weather. antarctica is a place of extremes. it is the coldest, highest, driest and windiest continent on earth. capped by an ice sheet of up to five kilometres thick, this continent contains

scientists have to put up with some pretty extreme conditions. 0ur chief environment correspondent, justin rowlattemote campsite on earth. right, so up here we have the massive thwaites glacier. the work these scientists are doing should help us all, giving us a much clearer understanding of how sea level could rise worldwide and that is why we are camping here. this is the residential area, this is where we sleep. these are scott tents, after captain scott. james. how are you? can we see inside? by all means, be my guest. check out his crib. you've got everything you're going to need to be in the tent for a long time. so we've got a light source that also is a heater. we've got a stove... scott himself could have used this. i think he actually used this one. so the idea is that you could get stuck in a tent like this for days and you'd be able to survive for days. we normally have a 20—day food box outside so, if it's a really big blow, you have everything you need to be self—sufficient for a long time. now, we come to the delicate subject of the antarctic toilet. and you have choices here. you'v

our chief environment correspondent, justin rowlatt, has been for a tour of the most remote campsitectually used this one. so the idea is that you could get stuck in a tent like this for days and you'd be able to survive for days. we normally have a 20—day food box outside so, if it's a really big blow, you have everything you need to be self—sufficient for a long time. now, we come to the delicate subject of the antarctic toilet. and you have choices here. you've got the pee stick here or the toilet tent. ok, so what you've got is a big hole in the snow and then this like throne which for some reason — no—one can explain why — is called a johnson box. one more lunch, do you think? yeah. so this is a water treatment plant. the purest water in the world. fresh, glacial water. turn on the furnace. let's get it in. it's pretty basic, we start with a little bit of water to make melting easier and it's fresh antarctic snow, fresh to drink. sausages and rapeseed oil. you get them out in the frying pan and, oh, beautiful. spam. this is tinned cheese. slightly processed, slightly plasticky,