That's all from Holyrood Live on Tuesday 24 September 2019, a quite remarkable day in UK politics.

The first minister called on Boris Johnson to resign after the Supreme Court ruled that his decision to suspend Parliament was unlawful.

Nicola Sturgeon said the prime minister's behaviour shamed the office of prime minister, the UK government and the Conservative Party.

She told MSP the ruling by the Supreme Court was "truly historic and unprecedented".

The first minister said: "It's hard to think of a democratic country where there has been a more damning vierdict on the behaviour of a prime minister."

Mr Johnson, who is currently in the US, told the BBC he "strongly disagrees" with the ruling but will "respect" it.

The prime minister suspended Parliament - a process known as proroguing - for five weeks earlier this month.

• Suspending Parliament was unlawful, court rules

• Why were MPs sent home in the first place?
• What just happened?
• Read more here

Public Health Minister Joe FitzPatrick says one of the key problems about IPF is that the cause is unknown.

Tory MSP Brian Whittle calls for better data collection, and the minister agrees this is important.

He praises the work of the third sector in supporting people with IPF and raising awareness.

The Scottish government is committed to improving the quality of care in Scotland he states, and highlights the first ever respiratory care action plan will be published before the end of the year.

Doctors in the US are warning people not to use e-cigarettes as they investigate six deaths linked to vaping.

But health experts also say there's a long-term addiction crisis because so many American teenagers are already hooked on nicotine.

Produced by the BBC's Chelsea Bailey, Rod Macleod, Franz Strasser and Caché McClay.

Image source, Getty Images

Australian scientists hope a drug that mimics part of a shark's immune system may help treat an incurable lung disease.

Idiopathic pulmonary fibrosis (IPF) scars lung tissue, causing breathing to become progressively harder.

It kills more than 5,000 people each year in the UK alone, according to the British Lung Foundation.

Researchers hope a new drug, inspired by an antibody in the blood of sharks, can begin human trials next year.

Read more.

Image source, British Lung Foundation

According to the British Lung Foundation...

"Idiopathic pulmonary fibrosis (IPF) is a lung condition that scars your lungs and reduces the efficiency of your breathing. It’s the most common type of pulmonary fibrosis."

Idiopathic means the cause is unknown - but "it is more common if you have been exposed through your occupation to dust from wood, metal, textile or stone, or from cattle or farming."

Read more about symptoms, diagnosis and treatment on the BLF website. , external

Image source, bbc

Labour MSP Colin Smyth tells the chamber of his dad's experience of idiopathic pulmonary fibrosis.

Mr Smyth says tiredness became breathlessness when walking the shortest distance.

He explains more frequent hospital admissions led to his dad's diagnosis of idiopathic pulmonary fibrosis (IPF).

The Labour MSP says when he read about IPF he felt sick to his stomach due to the poor prognosis.

In an emotional contribution Mr Smyth says his dad passed away on 8 May 2013.

He highlights the issue of inequalities in lung disease, with a higher prevalence in industrial areas.

Mr Smyth says in the years since his dad passed away there has been much progress and he hopes in the future IPF can be cured and prevented.

Image source, Science Photo Library

The term pulmonary fibrosis covers several different lung conditions, all of which cause a build-up of scar tissue.

According to the British Lung Foundation, it's often unclear what caused the condition.

It can be linked to autoimmune diseases such as rheumatoid arthritis, where the body's own immune system starts attacking it.

Lifestyle factors such as allergies are responsible for some cases, as well as drug side-effects.

Symptoms include: shortness of breath, fatigue, weight loss and pain in joints.

Labour MSP Colin Smyth is highlighting Idiopathic Pulmonary Fibrosis Week, which ends today.

His motion says around 2,500 people in Scotland have the condition and praises the British Lung Foundation for its efforts in awareness and fund raising.

Image source, Scottish Parliament

Image source, PA

Back in March 2018, the BBC reported that the UK government named 24 devolved areas where it wants to temporarily retain power following Brexit.

Ministers in the Scottish and Welsh governments want subjects such as food labelling and animal welfare to come under their control.

However, UK ministers were bidding to oversee those areas, and others on the list, external, when the UK leaves the EU.

The Scottish government accused the UK government of a power grab and has introduced its own Brexit legislation.

Read more.

Image source, Google

MPs have called for the role of the Scotland Office to be reviewed, with suggestions it could be replaced with a department for constitutional affairs.

Westminster's Scottish Affairs Committee said the relationship between the Scottish and UK governments had "deteriorated" at a crucial moment.

Chairman Pete Wishart said "fundamental changes" were needed to rebuild trust.

However, a UK government spokesman said the role of the Scotland Office was "more important than ever".

Read more.

Philip Sim
BBC Scotland political reporter

Image source, Andrew Cowan

MSPs refused to give Holyrood's devolved consent to the EU Withdrawal Bill, the main piece of Westminster Brexit legislation. What is the background to the row?

The row centres on a set of powers which are technically devolved to the Scottish Parliament, but which are currently exercised from Brussels to ensure rules and regulations are the same across the EU.

The question is what happens to these powers after the UK leaves the EU?

Ministers agreed that some of them should go into UK-wide frameworks - similar to how they were used previously but across the UK's "internal market" instead of the European one.

The argument is about how these "UK-wide frameworks" are set up and how they might be run in the years immediately following Brexit.

Read more.

Image source, bbc

Scottish Lib Dem leader Willie Rennie supports the recommendations in the committee's report, insisting they reflect his principles at the heart of his goal for a federal UK.

Mr Rennie calls for changes in the way the UK makes decisions in areas of common interest.

He thinks back to the passage of the UK Withdrawal from the European Union (Legal Continuity) (Scotland) Bill and Lib Dem amendments seeking a federal structure.

The Scottish Lib Dem leader argues this would have protected the workings of the UK internal market, preventing sole control by UK ministers.

He warns against any Scottish government veto in areas of a common framework, preferring a type of qualified majority voting fostering an atmosphere of cooperation.

Scottish Green co-leader Patrick Harvie says the landscape has changed somewhat since the committee began this inquiry, with Brexit only having been at "DEFCON 3" then.

Mr Harvie suggests the simplest solution is devolution, pointing to how consensus was reached a decade ago with marine spatial planning which involved both reserved and devolved policy areas.

If we were not so focused on Brexit, we could have resolved some of the questions around common frameworks he states.

If Scotland is to remain in the UK and if the UK is to leave the EU, we must seek to redress the balance of power the Green MSP concludes.

Labour MSP Alex Rowley says there must be a collaborative approach to develop and agree legislative and non-legislative common frameworks.

The Labour MSP welcomes the work done so far but adds he is worried about the lack of recent progress.

He expresses concern about Boris Johnson's recent attempts to subvert democracy and he warns about a lack of coherence at UK level on this issue.

Image source, bbc

The Labour MSP backs the call for the intergovernmental relations review to be continue urgently.

Mr Rowley says Labour agrees Holyrood should have a formal role in the development of frameworks and he warns against any rolling back of devolution.

He criticises the lack of consultation by the UK government and calls for changes in the joint ministerial committee to provide greater transparency and stakeholder engagement.