The latest report from the Intergovernmental Panel on Climate Change (IPCC) tells us that to rein in climate change and keep global warming under 2°C, we will have to start reducing emissions now and get to near net zero emissions within this century.
That won’t happen without healthy forests and soil storing carbon, and it won’t happen without climate-smart land-use practices that can keep carbon in the ground.
Together, agriculture, forestry and other land use changes account for about a quarter of anthropogenic greenhouse gas emissions. The sector can be a powerful source of emissions, but it is also a powerful carbon sink that can absorb carbon dioxide, providing a pathway to negative emissions. The IPCC authors estimate that with both supply-side and demand-side mitigation efforts – including reducing deforestation, protecting natural forests, restoring and planting forests, improving rice-growing techniques and other climate-smart agriculture methods, changing diets, and reducing the immense amount of global food waste – we can effectively reduce a large percentage of emissions from the sector and increase carbon storage to move the needle toward net zero.
Over the next few months, governments worldwide will be preparing their national contributions to our collective need to combat climate change. These plans will form the foundation of a new international climate agreement to be agreed in Paris in one year’s time. Collective ambition matters now more than ever. We all have a responsibility to make the choices that will lower the risks created by decades of greenhouse gas emissions and usher in an era of job-rich, more-inclusive, cleaner economic development.
Scientists have provided us with a remarkable consensus. We believe that with this evidence, we have the strong foundation for action. That’s good news, because climate action has to scale up now.
This week and next at the UN climate negotiations in Lima (COP20), there is a sense that gridlock may be easing. The U.S. and China – the world's two largest emitters – set a strong pace last month when Presidents Barack Obama and Xi Jinping stood together and jointly announced their top-line commitments for cutting emissions. Their pledges, along with commitments from the European Union and donor support for the Green Climate Fund, auger well for the Lima talks. But this was always billed as the finance COP, and how we finance the transition to deep decarbonization and lasting resilience requires a coming together that has eluded us to date.