Welcome to Matt Ridley's Blog

My Times column on Britain's self-inflicted diesel scandal:

Sadiq Khan, the mayor of London, is right to try to switch the capital away from diesel engines as fast as possible, even if this is tough on those duped into buying diesel cars by years of government incentives and propaganda. Diesel engines do make for worse air quality than petrol engines, and air pollution does almost certainly kill people in significant numbers.

In 2010, the Committee on the Medical Effects of Air Pollutants (Comeap) found that in Britain poor air quality “may have made some contribution to the earlier deaths of up to 200,000 people in 2008, with an average loss of life of about two years per death affected”.

A longer version of my Times column on free speech:

"In a free state, tongues too should be free,” wrote Erasmus 501 years ago. In truth, although Britain was often more tolerant than many countries, people have never been entirely free to speak their minds here. Blasphemy and sedition got you into trouble for centuries. There was uproar when Ken Clarke invited Oswald Mosley to address the Cambridge Union in 1961. The law has always rightly forbidden incitement to violence.

An expanded version of my Wall Street Journal article on bees, pesticides and how environmental activists gamed the system:

To those who have engaged with environmental activists in recent years, the concept of fake news is old hat. From Greenpeace’s hundred-fold exaggeration of the oil in the Brent Spar oil platform in 1995 to Friends of the Earth’s slap-down by Britain’s Advertising Standards Agency over fracking untruths in 2017, we have grown used to being told “alternative facts” that later turn out to be wrong by those with green axes to grind. The latest episode of environmental activists playing fast and loose with the facts, however, may be their undoing. 

My Times column on the revelations of problems with the global surface temperature record at NOAA:

Back in December, some American scientists began copying government climate data onto independent servers in what press reports described as an attempt to safeguard it from political interference by the Trump administration. There is to be a March for Science in April whose organisers say: “It is time for people who support scientific research and evidence-based policies to take a public stand and be counted.”

Well, today they have a chance to do just that, but against their own colleagues who stand accused of doing what they claim the Trump team has done. Devastating new testimony from John Bates, a whistleblowing senior scientist at America’s main climate agency, the National Oceanic and Atmospheric Administration, alleges that scientists themselves have been indulging in alternative facts, fake news and policy-based evidence.

My Times column on British environmental policy:

Andrea Leadsom, the agriculture and environment secretary, is to set out her plans for the British countryside in two green papers: one on the environment this week and one on farming later. She should be ambitious and positive: the future, post-Brexit, could be bright and green.