another major challenge for the maya biosphere reserve is illegal logging.re reserve is illegal logging. when thejungle is clear. it doesn't just affect the animals in the rain forest, but also the sites, which are often irretrievably damaged. loop to the sites where the marijuana was growing and then collected to harvest. several illegal activities are still going on in guatemala. illegal lock being, which is not a problem here specifically, but in other regions —— illegal logging. drug trafficking. we're fortunate here. airstrip from columbia, to go across from mexico and there from the us. they burnt all the forest. this area has done much better because it was given concession for sustainable logging. in the last 20 years, the local communities have stopped the drug trafficking, the land invasions, the dufour station, and that's why sites like that are recovered by force —— the deforestation. we think what we have in place here works much better because the local communities are empowered and have an incentive to protect the forest. for as long as i can

located in northern guatemala, the maya biosphere reserve is the largest rainforest north of the amazon of the world's most important hotspots for biodiversity. it also was once the heart of the maya civilisation. today, hundreds of houses, fortifications, temples and other structures lie hidden beneath the jungle. i like this part. but some archaeologists are determined to change that. they've devoted their careers to getting the jungle to give up its secrets, and new technology has revealed that, despite decades of work, they have only begun to scratch the surface. there's a deep hole, and that's where they're digging right now. car starting. don't let me down. the maya city of holmul has been an obsession of archaeologist francisco estrada belli's for the last 20 years. he calls it the gift that keeps on giving. let's try not to get stuck. yeah. in recent years, his work has been aided by the use of lidar, a technology currently transforming archaeology. i've come to holmul, on the border with belize, to learn more about what estrada belli has discovered. this was one of the most pop

we begin in northern guatemala, at the maya biosphere reserve.est lies the remains of one of the largest mayan cities. tikal. at its height, around 1500 years ago, it was home to as many as 90,000 people. so we sent amanda to find out how advances in archaeology have uncovered some long buried secrets. one of the biggest challenges to archaeologists in the maya biosphere reserve is the fact that it is extremely difficult to find or identify structures in a jungle is thick and wild as this one. and that is where a technology that is relatively new to archaeology has been transformative. so this hill is supposedly a pyramid. they think it might be maybe as big as the great pyramid. it is definitely steep, but it looks like a hill, so it is pretty amazing they are able to find that out through lidar. so only 10% of tikal has actually been excavated and discovered ? lidar is a type of remote sensing technology that is used to create extraordinarily detailed sd maps and representations. in the reserve, lidar is being employed in two ways. from aircraf

or monarch butterfly biosphere reserve in mexico are under threat this year is on course to become the 2nd hottest on record after 2016 and the u.n. secretary general sent out a dire warning humanity is waging war on nature the zs suicidal nature always tried spec and it is already doing so we'll go in force and few. biodiversity collapsing when 1000000 species on its risk of extinction eco systems are these appearing before our eyes there's the wetlands are being lost every year most 10000000 times and forests oceans are overfished and shocking. according to the world meteorological organization greenhouse gas concentrations climbed to a new record in 2019 and have risen so far this year despite an expected drop in emissions to cope with 19 knockdowns. tourism hunting fishing and livestock grazing are playing a role in the crisis. less visible was an increase in marine heat to record levels. more than 80 percent of the world's oceans experienced a heatwave. the shrinking of the ice caps and bleaching of carl reefs are just some of the impacts. the changes we are it is not a religion o

carillo is on his way to milk his cows he follo a path the nambiyuguaa motain in e laepultura biosphere reservethn mexico. legend h it o trieto take something away from the mountain will never almost pmal mistthere's been wn the slop are shrded in a onany of t other mntain slopesn the reon. farmerkeep the cattle the fosts thatemain. hektorarillo'sows grazon laprotect the woodland. >> the cattle wreak havoc intr everhing, contaminate the stams and cae ground erosion. so if they run around the forest and it rains, there'll be landslides. hector keeps 20 cows. he used to have many more but he got rid of half of them because he knows that traditnal livestock farming is bad for the environment. decades ago, his grandfather switched from growing corn and beans to livestock farming, because it was more profitable. three years ago, hector joined the project biopasos, which promotesattle farmg that's sustainae and esn't desty diversity. his income is starting to increase, and the enronment gradually recovering. but it's been a difficult few years. >> i argued wi my father that w the firstbstacle i had t

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biosphere reserve in southern mexico. legend has it that anyone who tries to take something away from the mountain will never return home. the slopes are shrouded in an almost primal mist there's been widespread deforestation on many of the other mountain slopes in the region farmers keep their cattle in the forests that remain. cows grazing on land that's fenced off to protect the woodland. want to copy wreak havoc in the forest they destroy everything contaminate the streams and cause ground erosion so if they run around the forest and it rains there be landslides. most fair. hector keeps 20 cows he used to have many more but he got rid of half of them because he knows that traditional livestock farming is bad for the environment decades ago his grandfather switched from growing corn and beans to livestock farming because it was more profitable. 3 years ago hector joined the project b.-o. possumus which promotes cattle farming that's sustainable and doesn't destroy diversity his income is starting to increase and the en

milk his cows he follows a path up the number you grew up a mountain in the last appeal to our biosphere reserve in southern mexico. legend has it that anyone who tries to take something away from the mountain will never return home. the slopes are shrouded in an almost primal mist there's been widespread deforestation on many of the other mountain slopes in the region farmers keep their cattle in the forests that remain. ector cardioids cows grazing on land that's fenced off to protect the woodland. park and they walk up with it when i want a couple weeks back in the forest they destroy everything contaminate the streams and cause ground erosion so if they run around the forest and it rains there be landslides. with god for a fair of them rather hector keeps 20 cows he used to have many more but he got rid of half of them because he knows that traditional livestock farming is bad for the environment decades ago his grandfather switched from growing corn and beans to livestock farming because it was more profitable. 3 years ago hector joined the project be opossums which promotes cattle farming

or monarch butterfly biosphere reserve in mexico are under threat this year is on course to become the 2nd hottest on record after 2016 on the u.n. secretary general sent out a dire warning you many think he's waging war on nature the zs suicidal nature always strikes back and he's already doing so we'll go in force and funi. biodiversity is collapsing 1000000 species on its risk of extinction eco systems are these are beating before our eyes deserts are spreading wetlands are being lost every year we most 10000000 ector's the forests oceans are overfished and shocking we mustn't waste. according to the world meteorological organization greenhouse gas concentrations climbed to a new record in $2019000.00 have risen so far this year despite an expected drop in emissions she took over $1000.00 knockdowns. tourism hunting fishing and livestock grazing are playing a role in the crisis. less visible was an increase in marine heat to record levels more than 80 percent of the world's oceans experienced a heatwave. shrinking of the ice caps and bleaching of carl reefs are just some of the impa

to milk his cows he follows a path up the number you grew up a mountain in unless it were to biosphere reserve in southern mexico. legend has it that anyone who tries to take something away from the mountain will never return home. the slopes are shrouded in an almost primal mist there's been widespread deforestation on many of the other mountain slopes in the region farmers keep their cattle in the forests that remain. cows grazing on land that's fenced off to protect the woodland. if they're going to walk up with a gun i would want a couple wreak havoc in the forest they destroy everything contaminate the streams and cause ground erosion so if they run around the forest and it rains there be landslides. and of feral of their lover hector keeps 20 cows used to have many more but he got rid of half of them because he knows that traditional livestock farming is bad for the environment decades ago his grandfather switched from growing corn and beans to livestock farming because it was more profitable. 3 years ago hector joined the project to be opossums which promotes cattle farming that's susta

for monarch butterfly biosphere reserve in mexico are under threat this year is on course to become the 2nd toughest on record after 2016 and the u.n. secretary general sent out a dire warning you many think he's waging war on nature the zs suicidal nature always strikes back and he's already doing so we're going force and feuding . biodiversity is collapsing 1000000 species on its risk of extinction eco systems are these are beating before our eyes deserts are spreading wetlands are being lost every year we lost 10000000 eggs and forests oceans are overfished and shocking with plastic waste. according to the world meteorological organization greenhouse gas concentrations climbed to a new record in 2019 have risen so far this year despite an expected drop in emissions she took over $1000.00 knockdowns. tourism hunting fishing and livestock grazing are playing a role in the crisis. less visible was an increase in marine heat to record levels more than 80 percent of the world's oceans experienced a heatwave. shrinking of the ice caps and bleaching of carl reefs are just some of the impact

or monarch butterfly biosphere reserve in mexico are under threat this year is on course to become the 2nd hottest on record after 2016 on the un secretary general sent out a dire warning humanity is waging war on nature the zs suicidal nature always strikes back and it is already doing so we'll go in force and funi. biodiversity is collapsing when 1000000 species and it's risk of extinction eco systems are these appearing before our eyes there's that sense wetlands are being lost every year we moved $10000000.00 extremes and forests oceans are overfished and shocking we mustn't waste. according to the world meteorological organization greenhouse gas concentrations climbed to a new record in 2019 and have risen so far this year despite an expected drop in emissions she took over $1000.00 knockdowns. tourism hunting fishing and livestock grazing are playing a role in the crisis. less visible was an increase in marine heat to record levels. more than 80 percent of the world's oceans experienced a heatwave. the shrinking of the ice caps and bleaching of carl reefs are just some of the imp

or monarch butterfly biosphere reserve in mexico are under threat this year is on course to become the 2nd toughest on record after 2016 on the u.n. secretary general sent a dire warning humanity is waging war on nature the zs suicidal nature always strikes back and he's already doing so with going force and feuding. biodiversity collapsing when 1000000 species and it's risk of extinction eco systems are these appearing before our eyes there's a. being lost every year most $10000000.00 times and forests oceans are overfished and. according to the world meteorological organization greenhouse gas concentrations climbed to a new record in 2019 and have risen so far this year despite an expected drop in emissions she took over $1000.00 knockdowns. tourism hunting fishing and livestock grazing are playing a role in the crisis. less visible was an increase in marine heat to record levels. more than 80 percent of the world's oceans experienced a heatwave. the shrinking of the ice caps and bleaching of carl reefs are just some of the impacts. the change in the arctic is not a religion. or gram