The data shows that the representation of scientists from marginalized ethnicities is decreasing.

Data on ethnic or racial diversity in science is examined in this article.

Robert Mokaya found out that he was the only black chemistry professor in the UK. After investigations by the UK Royal Society of Chemistry, he realized he was alone. Someone told me that I was an extinct species. He says there won't be any when he retires. It is not a good thing.

These figures are found at the top of UK academia. There are no black physics professors in the UK according to 2020–21 data. 4% of the country's working age population is black, and 8% of its science undergraduates are black. Only 160 of the United Kingdom's 22,855 professors are black. In science, the representation of researchers of Asian, mixed or multiple ethnic groups dwindles with age.

The HESA is the source of the UK census.

Black Caribbean, Bangladeshi and Pakistani ethnicities are under-represented according to an analysis.

The HESA is the source of the UK census.

The way UK science is impoverished by losing diversity of thought and experience is shown by these figures.

The data collected by Nature shows attrition at every stage of the UK academic journey. Responsibility shouldn't be placed on individuals who are struggling to thrive in UK academia, according to those who study these inequalities. The system needs to be changed with institutions asking what is inhospitable for some academics. Mokaya says that they don't need anything else.

Robert Mokaya was the only black chemistry professor in the UK. Andrew Hallsworth has a credit card.

Starting out

There are some positives. The United Kingdom's undergraduates are more diverse than the population as a whole. Science courses are hard to get students from marginalized groups. More than 8% of degree students in science subjects in 2020–21 were black, but less than 3% were in the physical sciences. Engineering subjects such as law, business and medicine appeal to a more diverse group of students.

Some of the reasons are financial, according to Mahrukh Shameem, a PhD student in immunology at the University ofSheffield. People from minority ethnicities are more likely to be poor in the UK. A 2020 UK government survey shows that people from Pakistan and Bangladesh have the lowest household incomes, while people from India have the highest. She says that this could sway some students to go for engineering or medicine. Some students in the UK South Asian community might have an expectation that they will be relied on to support their families financially over the course of their lives.

There is a PhD student in Immunology at the University ofSheffield. The credit is given toClaire Morton.

According to Mark Richards, a physicist at Imperial College London and member of Imperial As One, the university's race equality advisory group, physics is perceived as a "quest for knowledge" He says physics graduates are often employed in banking and the public sector.

The pattern perpetuates when prospective students feel they won't fit in because they don't see people like themselves doing it or because its contents don't reflect their culture. Shameem says that she hasn't met a single female principal investigator or lecturer from Pakistan.

The PhD precipice

The percentage of black students in postgraduate science is much lower than at undergraduate level. Only 3.8% of students who started research master's or PhDs in science subjects in 2020–21 were black, compared with 8.3% of those who started first degrees in those subjects three years earlier. 8.2% of students in science postgraduate courses are black. On the basis of undergraduate science populations, fewer students of Asian ethnicity continue to work in the field. White students are more represented in the majority of subjects.

Shameem is not surprised by the decline. She says that few students from lower socio- economic background know that PhDs are funded.

The trend can only be explained by socio- economic factors. Wayne Mitchell is a co-chair of Imperial As One and he says that a student's undergrad experience has an impact. They aren't likely to want to continue if they feel like they've been "banging their head against a brick wall"

The drop-off is often attributed to students' choice. Structural barriers affect selection according to him. PhD students with top grades are popular among universities. White students are more likely to leave university with top grades than students from marginalized ethnicities, even when their school grades suggest they are equally able. The awarding or attainment gap is caused by a range of factors, including biased curriculum design, a lack of role models and guidance, and students feeling like they don't belong.

PhD courses give students from top universities a leg up. Richards says that black students are over-represented in less research focused universities because they don't see elite institutions as for them. There is an awarding gap between black and white students.

PhD applications often depend on reference letters that invoke superficial metrics and impressions of how engaged students are, which leaves wide scope for bias, according to a cell biologist at the University ofSheffield. The quality of students' work, the challenges they have overcome and the achievements that reflect on their character should be the focus. She says that the selection process needs to evolve.

It is not known if PhD funding contributes to the diversity drop due to data collection methods. It's hard to analyse the differences.

Mitchell says that marginalized students aren't deemed as competitive because of structural factors.

Seniority drop

There is a further drop. A snapshot of 2020–21 shows that 2.5% of junior UK research staff in science subjects were black, compared with 0.6% of senior levels, including professors. There is a decrease in the number of researchers of other minority ethnicities.

Data shows that the current pace of change is slow, particularly among Black researchers. The number of people from Black ethnicities in junior academic science staff is growing. The proportion of Black scientists in professor and senior management roles barely changed over the past 12 years.

Access to information on grants and how to win them is one of the factors that can lead to advancement up the ladder. Senior figures are more likely to see potential in people who are similar to themselves if they are aware of it.

Richards compares it to navigating from one side of a dark, cluttered room to the other, with some getting a torch and others not. People shine a torch to help someone else. It is going to make a difference in progression if you are not being helped out as much as other people.

It is harder for people from marginalized ethnicities to progress. Studies show that staff from minority ethnic groups are more likely to be isolated. Microaggressions can include colleagues questioning their credibility or expressing surprise that academics from minority groups are scientists. Those who can travel and negotiate positions are more likely to be awarded grants and promotions. She says that an approach that is not biased towards those who shout the loudest is needed.

Studies show that women and marginalized academics are less likely to get higher marks than their male counterparts. The time spent on breaking down race- and ethnicity-based barriers takes away from research time. There is a disparity in the grant process.

Mokaya says that researchers of colour feel like they have to do more to demonstrate their ability than white colleagues. In the UK workforce, people from Black and minority ethnicities were more likely to be over qualified for their job but less likely to be promoted, according to a study by the UK government. A lot of people talk about a leaking pipe. Mokaya says it is a blockedpipeline.

Ijeoma Uchegbu, an envoy for race equality at University College London, says that women from black and minority ethnicities are less likely to be promoted than their peers.

Unbalanced elite

Most people at the professor level are white and male. There are 70 black professors in science subjects in the United Kingdom, of which 10 are women, according to HESA data.

Only 4% of professors in the sciences are of Asian descent, with 6.1% in chemistry and 5.3% in physics. Civil-engineering professors are more likely to be of Asian ethnicities and Black.

The lack of diversity perpetuates inequality, not only because people are likely to promote others like them, but also because leaders might not be able to empathise with the problems that minorities face. Hussain says that it keeps feeding back. slogging through the rejections that are rife in academia can feel pointless if there are no examples of success.

Funding concerns

There are funding discrepancies that are worrying. According to data published by UKRI, researchers of marginalized ethnicities are less likely to get grants than their white peers. The success rate for Black applicants was less than that for white applicants. There were significant differences between the subcategories. For those of Bangladeshi heritage, the cumulative success rate over 5 years was just 12%, compared with 21% for Chinese and 23% for Indians.

The figures weren't controlled for factors such as career stage, geographical location or discipline, so they shouldn't be seen as showing a correlation between ethnicity and award rates Data showing differences between different ethnic groups forms part of ongoing work at UKRI to increase equality diversity and inclusion in the research and innovation system, according to the funder.

Melanie Welham, UKRI's executive champion for people, culture and talent, said that their work includes improving and better understanding the data, using these to design and then test interventions, and evaluating their effectiveness.

Mokaya says that the process of evaluating proposals needs to be looked at closely. He has had all of his UKRI applications turned down in the last 15 years. He technically holds UKRI funding, but only because the agency is replacing European Union funding that Mokaya lost. White and minority ethnic groups have different success rates at the UK National Institute of Health and Care Research.

There was a six percentage point gap between the success rates of black and white applicants over the last five years. The figures show more variation over time. The gap was 9 percentage points for fellows.

Funding strategies are being tested to see if they work. The British Academyrandomized its small research awards in social sciences, humanities and the arts for applications that are equally good. Uchegbu says that peer-review panel chairs and members could benefit from being more diverse.

Wellcome is going in a different direction. After a damning report in August found that the funder was perpetuate racism, Wellcome promised to create a dedicated funding stream for researchers who are Black and people of colour. When funding applications have the same merit, Wellcome will favor those that broaden diversity.

Mokaya came to the UK as a PhD student in 1989 and says he is happy that more conversations are happening about inequity today. The Race & Ethnicity Unit and a dedicated student mentoring scheme have been created by the Royal Society of Chemistry. Representation in its governance, committees and editorial boards will be increased. In order to create a more equitable research environment, UKRI has introduced a number of measures, including spending almost £8 million on projects to improve access to postgraduate research for black, Asian and minority ethnic students.

Mokaya says racism has limited his career but he doesn't like to think about it. Structural issues that amount to a form of racism are what hamper diversity in UK science. He says that not everyone is being given the chance to flourish and to do as well as they can.