Ralph Sims

The country's greenhouse gas emissions are still rising, according to Statistics NZ.

The latest figures, for the June 2022 quarter, show the emissions rose 0.8 percent.

Massey University Emeritus… Audio

The country's shift to renewable energy is unlikely to see the lights going out more often.

The electricity sector is undergoing huge change as companies touting different technology vie for the… Audio

Farmers have released their plan to price carbon emissions outside the Emissions Trading Scheme.

The He Waka Eke Noa partnership recommends letting farmers count their emissions and allowing… Audio

An expert says he would "put money on New Zealand's gross emissions continuing to rise for some years yet".

Massey University emeritus professor of sustainable energy and climate mitigation Ralph… Audio

The crisis in Ukraine has sent oil prices skyward, topping US$105 a barrel.

But the government is reassuring New Zealanders the supply here is in good shape, because it comes from the Middle East.

… Audio

More than 20,000 people, including New Zealand officials, are converging on Glasgow in Scotland for the massive UN climate meeting.

It comes after a major UN climate report in August confirmed… Audio

The country is jumping in boots and all to replace high carbon coal boilers with cleaner ones powered by wood pellets.

Hospitals, schools and the country's second biggest emitter, Fonterra, are all… Audio

Increasing frequency and intensity of natural disasters in the Pacific is feeding a growing frustration on the ground for lack of global climate action. Audio

The National Party won't commit to bi-partisan support for the ambitious recommendations laid out by the Climate Change Commission in its official report on how New Zealand can reach its carbon… Audio

Electric vehicles continue to rise in popularity, but continue to be a subject of debate across the water cooler.

Just how good are they for the environment, compared to low emissions petrol of… Audio

Global meat consumption is increasing dramatically but the health and environmental effects can be nasty ... Professor Ralph Sims joins us to discuss how much meat is too much, and how harnessing… Audio

The Productivity Commission's draft report on how New Zealand can meet the government's goal of achieving a net-zero emissions economy by 2050 was released on Friday, with some recommendations it says… Audio

Professor Ralph Sims has calculated that the CO2 emissions produced by KiwiRail's new diesel locomotives are greater than those being offset by the country's entire fleet of electric cars. He speaks… Audio

Our wellbeing is said to be influenced by our natural environment - so what is the cost of losing it? Recorded in Wellington, the second panel in the Cities of Tomorrow series discusses how a… Audio

In its latest report on climate change, the Royal Society of New Zealand lays out options for how we coudl reduce greenhouse gas emissions. Audio