This article is from the source 'bbc' and was first published or seen on . It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at https://www.bbc.co.uk/news/50591261

The article has changed 2 times. There is an RSS feed of changes available.

Version 0 Version 1
General election 2019: How many trees can you plant? General election 2019: How many trees can you plant?
(about 3 hours later)
The political parties have been promising huge increases in tree planting in their election manifestos.The political parties have been promising huge increases in tree planting in their election manifestos.
The most eye-catching is Labour's plan to plant two billion trees by 2040.The most eye-catching is Labour's plan to plant two billion trees by 2040.
Impossible, some say - that's more than a quarter of a million trees every day.Impossible, some say - that's more than a quarter of a million trees every day.
But it's not necessarily unrealistic. It's just that it will require a sea change in the way things are done today.But it's not necessarily unrealistic. It's just that it will require a sea change in the way things are done today.
Where are we at the moment?Where are we at the moment?
Last year the number of trees planted across the UK went up: 13,400 hectares of new woodland was planted. Most of it was in Scotland, while there was actually a decrease in planting in England. In the year to March 2019, the number of trees planted across the UK went up: 13,400 hectares of new woodland was planted. Most of it was in Scotland (11,200 hectares), while there was actually a decrease in planting in England.
But these UK-wide figures fall way short of where they were in the late 1980s, when about 30,000 hectares were planted every year.But these UK-wide figures fall way short of where they were in the late 1980s, when about 30,000 hectares were planted every year.
Experts who advocate sustainable woodland are not huge fans of the way planting was done in that decade, but it does show that the current rate of planting could rise dramatically.Experts who advocate sustainable woodland are not huge fans of the way planting was done in that decade, but it does show that the current rate of planting could rise dramatically.
Meanwhile, the Conservatives have pledged to plant at least 30 million more trees every year, the Lib Dems say they will plant 60 million trees a year, while the Green Party would aim to plant 700 million trees by 2030. Meanwhile, the Conservatives have pledged to plant at least 30 million more trees every year, the Lib Dems and the SNP each say they will plant 60 million trees a year, while the Green Party would aim to plant 700 million trees by 2030.
How many trees are there in a hectare?How many trees are there in a hectare?
It's difficult to say precisely because trees can be planted at a density of anything between 1,000 and 2,500 per hectare.It's difficult to say precisely because trees can be planted at a density of anything between 1,000 and 2,500 per hectare.
But if you take a mid-range, then planting 30,000 hectares means you are planting roughly (and we should stress this is an estimate) 50 million trees a year.But if you take a mid-range, then planting 30,000 hectares means you are planting roughly (and we should stress this is an estimate) 50 million trees a year.
That's still a long way short of the rate of planting Labour would need to achieve, in order to meet its target. But it suggests that it could be done.That's still a long way short of the rate of planting Labour would need to achieve, in order to meet its target. But it suggests that it could be done.
Experts can plant trees incredibly quickly.Experts can plant trees incredibly quickly.
But the Woodland Trust, the UK's largest woodland conservation charity, says several things need to happen to encourage a huge tree-planting programme:But the Woodland Trust, the UK's largest woodland conservation charity, says several things need to happen to encourage a huge tree-planting programme:
"We know that the investment needed will pay back," says Darren Moorcroft, the chief executive of the Woodland Trust."We know that the investment needed will pay back," says Darren Moorcroft, the chief executive of the Woodland Trust.
"It will require landowners willing to provide the public benefits that society needs, and public funds to support it.""It will require landowners willing to provide the public benefits that society needs, and public funds to support it."
The Committee on Climate Change, a statutory body which provides advice to government, says the UK needs a net increase of 32,000 hectares of woodland every year for the next 30 years, in order to help achieve the legally-binding target of net zero carbon emissions by 2050.The Committee on Climate Change, a statutory body which provides advice to government, says the UK needs a net increase of 32,000 hectares of woodland every year for the next 30 years, in order to help achieve the legally-binding target of net zero carbon emissions by 2050.
That equates to about one-and-a-half billion trees.That equates to about one-and-a-half billion trees.
Again that sounds like an awful lot, but at the moment only 13% of the UK's land area is covered in trees (and in England it is 10%).Again that sounds like an awful lot, but at the moment only 13% of the UK's land area is covered in trees (and in England it is 10%).
The aim is to increase that UK-wide figure to 17% by 2050. The average tree cover across the EU is about 35%, so it's actually quite a modest overall target.The aim is to increase that UK-wide figure to 17% by 2050. The average tree cover across the EU is about 35%, so it's actually quite a modest overall target.
To put things into further perspective, there have been multiple efforts elsewhere in the world to plant millions of trees in a single day.To put things into further perspective, there have been multiple efforts elsewhere in the world to plant millions of trees in a single day.
Guinness World Records say roughly 50 million were planted by volunteers in the Indian state of Uttar Pradesh on a single day in 2016.Guinness World Records say roughly 50 million were planted by volunteers in the Indian state of Uttar Pradesh on a single day in 2016.
So, ambitious targets for the UK should not be dismissed out of hand.So, ambitious targets for the UK should not be dismissed out of hand.
But to get there, from where we are now, will take a gargantuan effort. And political promises on tree planting have been broken before.But to get there, from where we are now, will take a gargantuan effort. And political promises on tree planting have been broken before.
What claims do you want BBC Reality Check to investigate? Get in touchWhat claims do you want BBC Reality Check to investigate? Get in touch
Read more from Reality CheckRead more from Reality Check
Follow us on TwitterFollow us on Twitter