Tag: greenhouse gases

A deep dive into the IPCC’s updated carbon budget numbers

Guest post by Joeri Rogelj (Twitter: @joerirogelj) Since temperature targets became international climate goals, we have been trying to understand and quantify the implications for our global emissions. Carbon budgets play an important role in this translation. Carbon budgets tell us how much CO2 we can emit while keeping warming below specific limits. We can […]

A Tale of Two Hockey Sticks

Two decades ago, the so-called “Hockey Stick” curve, published in 1999 by me and my co-authors (Mann, Bradley and Hughes, 1999), was featured in the all-important “Summary for Policy Makers” (SPM) of the 2001 IPCC Third Assessment report. The curve, which depicted temperature variations over the past 1000 years estimated from “proxy data such as […]

The IPCC Sixth Assessment Report

Climate scientists are inordinately excited by the release of a new IPCC report (truth be told, that’s a bit odd – It’s a bit like bringing your end-of-(seven)-year project home and waiting anxiously to see how well it will be received). So, in an uncharacteristically enthusiastic burst of effort, we have a whole suite of […]

Coronavirus and climate

As we collectively reel from the changes wrought by the current pandemic, people are being drawn by analogy to climate issues – but analogies can be tricky and often distort as much as they illuminate. For instance, in the Boston Globe, Jeff Jacoby’s commentary was not particularly insightful and misquoted Mike Mann pretty egregiously. Mike’s […]

IPCC Special Report on Land

Thread for discussions of the new special report. [Boosting a comment from alan2102]. Climate Change and Land An IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems Land degradation accelerates global climate change. Al Jazeera EnglishPublished on Aug 8, 2019 New UN report […]

Causes and Effects of Climate Change | National Geographic

What causes climate change (also known as global warming)? And what are the effects of climate change? Learn the human impact and consequences of climate change for the environment, and our lives. ? Subscribe: About National Geographic: National Geographic is the world’s premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, […]