Scientists and concerned citizens have put in place programmes to reduce…

The idea

Human activities such as deforestation, pollution and overfishing reduce biodiversity, so scientists and concerned citizens design programmes to limit the damage. A programme is a planned set of actions with a clear aim, carried out by people such as ecologists, conservation charities, zoos and local volunteers. For example, a wildlife trust may survey a rare orchid, fence it from trampling and raise funds to buy the site. Scientists provide evidence: they count species, monitor populations and judge whether a method works. Concerned citizens provide money, time and political pressure. Together these programmes aim to protect species, habitats and genetic variation so ecosystems stay stable and useful to humans.

What earns the marks

• State that human activities reduce biodiversity and that programmes are deliberate responses to this.
• Identify scientists as the group that gathers evidence, monitors populations and evaluates conservation methods.
• Identify concerned citizens as volunteers, donors or campaigners who support and fund conservation work.
• Give a named example of a programme, such as a captive breeding scheme or a habitat protection project.
• Explain that the overall aim is to reduce negative effects on ecosystems and biodiversity.

Common mistakes and how to put them right

• Writing that programmes stop all human impact.

  Put it right: They reduce negative effects, they do not remove them completely.

• Confusing a programme with a single one-off action.

  Put it right: A programme is planned and sustained over time.

• Naming only scientists and ignoring concerned citizens.

  Put it right: The statement names both groups, so credit both.

Exam tips

• Use the words scientists and concerned citizens explicitly in your answer.
• Link each programme to a specific negative effect it reduces, such as habitat loss or overfishing.
• Give one concrete example rather than a long list of vague names.