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W.W. Norton book titled "The Secret World of Weather" featuring a colorful weather-themed cover image.

Zion Forever Project

The Secret World of Weather

$18.95

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Zion Circle members save $2.84 on this item 15% off all eligible purchases, in-store and online. Annual membership from $50.

Every purchase directly funds conservation, education, and stewardship at Zion National Park.

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Free shipping on orders over $100. Standard shipping 3-7 business days. Easy returns within 30 days.

© 2026, Zion Forever Project

<script src="//www.zionpark.org/cdn/shop/t/35/assets/zfp-scroll-animations.js?v=40123657415927684401775865929" defer></script> <div id="zfp-drawer-overlay" class="zfp-drawer-overlay" aria-hidden="true"></div> <div id="zfp-cart-drawer" class="zfp-cart-drawer" role="dialog" aria-modal="true" aria-label="Your cart" hidden> <div class="zfp-cd-header"> <div class="zfp-cd-header__left"> <span class="zfp-cd-header__title">YOUR CART</span> <span class="zfp-cd-header__count" id="zfp-cd-count">0</span> </div> <button class="zfp-cd-close" id="zfp-cd-close" aria-label="Close cart"> <svg width="18" height="18" viewBox="0 0 18 18" fill="none"> <path d="M1 1L17 17M17 1L1 17" stroke="currentColor" stroke-width="2" stroke-linecap="round"/> </svg> </button> </div> <div class="zfp-cd-ship" id="zfp-cd-ship" hidden> <div class="zfp-cd-ship__msg" id="zfp-cd-ship-msg"></div> <div class="zfp-cd-ship__track"> <div class="zfp-cd-ship__fill" id="zfp-cd-ship-fill"></div> </div> </div> <div class="zfp-cd-body" id="zfp-cd-body"> <div class="zfp-cd-empty" id="zfp-cd-empty" hidden> <svg width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5"> <circle cx="9" cy="21" r="1"/><circle cx="20" cy="21" r="1"/> <path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6"/> </svg> <p>Your cart is empty</p> <a href="/store" class="zfp-cd-empty__link">Continue Shopping</a> </div> <div id="zfp-cd-items" class="zfp-cd-items"></div> </div> <div class="zfp-cd-footer" id="zfp-cd-footer" hidden> <div class="zfp-cd-zc" id="zfp-cd-zc" hidden> <div class="zfp-cd-zc__topo"></div> <div class="zfp-cd-zc__inner"> <span class="zfp-cd-zc__icon">◈</span> <div class="zfp-cd-zc__body"> <strong id="zfp-cd-zc-title">Join Zion Circle — Support Zion & Save</strong> <span id="zfp-cd-zc-sub">Save 15% on eligible purchases. 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'<img class="zfp-cd-item__img" src="' + item.image.replace('.jpg', '_150x150.jpg').replace('.png', '_150x150.png') + '" alt="' + (item.title || '').replace(/"/g, '"') + '" loading="lazy">' : '<div class="zfp-cd-item__img-placeholder"></div>'; var priceHtml = ''; if (item.original_line_price !== item.final_line_price) { priceHtml = '<span class="zfp-cd-item__price--original">' + money(item.original_line_price) + '</span>' + '<span class="zfp-cd-item__price zfp-cd-item__price--sale">' + money(item.final_line_price) + '</span>'; } else { priceHtml = '<span class="zfp-cd-item__price">' + money(item.final_line_price) + '</span>'; } var variantHtml = (item.variant_title && item.variant_title !== 'Default Title') ? '<p class="zfp-cd-item__variant">' + item.variant_title + '</p>' : ''; html += '<div class="zfp-cd-item" data-line="' + (idx + 1) + '" data-key="' + item.key + '">' + '<a href="' + item.url + '">' + imgHtml + '</a>' + '<div class="zfp-cd-item__info">' + '<a href="' + item.url + '" class="zfp-cd-item__title">' + (window.zfpDisplayNames && window.zfpDisplayNames[item.product_id] || item.product_title) + '</a>' + variantHtml + '<div class="zfp-cd-item__price-row">' + priceHtml + '<div class="zfp-cd-item__qty">' + '<button class="zfp-cd-item__qty-btn" data-action="minus" data-key="' + item.key + '" aria-label="Decrease quantity">−</button>' + '<span class="zfp-cd-item__qty-num">' + item.quantity + '</span>' + '<button class="zfp-cd-item__qty-btn" data-action="plus" data-key="' + item.key + '" aria-label="Increase quantity">+</button>' + '</div>' + '<button class="zfp-cd-item__remove" data-key="' + item.key + '" aria-label="Remove ' + item.product_title + '">' + '<svg width="14" height="14" viewBox="0 0 14 14" fill="none"><path d="M1 1l12 12M13 1L1 13" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"/></svg>' + '</button>' + '</div>' + '</div>' + '</div>'; }); itemsEl.innerHTML = html; /* Zion Circle upsell */ zcEl.hidden = false; if (hasZC) { zcEl.classList.add('zfp-cd-zc--active'); zcTitle.textContent = 'Zion Circle savings active'; zcSub.textContent = '15% off applied to your eligible items'; zcBtn.style.display = 'none'; } else { zcEl.classList.remove('zfp-cd-zc--active'); zcTitle.textContent = 'Join Zion Circle — Support Zion & Save'; zcSub.textContent = 'Save 15% on eligible purchases. Starting at $50/yr.'; zcBtn.style.display = ''; zcBtn.disabled = false; zcBtn.textContent = 'Join'; } /* Recommendations — load once per product session */ if (lastProductId && !recsLoaded) { loadRecs(lastProductId); } } /* ── Fetch cart ── */ /* ── Fetch cart — private + public alias ── */ var fetchCartInFlight = false; function fetchCartPrivate() { if (fetchCartInFlight) return Promise.resolve(); fetchCartInFlight = true; return fetch('/cart.js') .then(function (r) { return r.json(); }) .then(function (cart) { fetchCartInFlight = false; renderCart(cart); return cart; }) .catch(function(e) { fetchCartInFlight = false; throw e; }); } /* Public alias for external callers */ window.fetchCart = fetchCartPrivate; window.fetchCartPrivate = fetchCartPrivate; /* ── Update line item ── */ function updateLine(key, quantity) { var itemEl = itemsEl.querySelector('[data-key="' + key + '"]'); if (itemEl) itemEl.classList.add('is-loading'); fetch('/cart/change.js', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ id: key, quantity: quantity }) }) .then(function (r) { return r.json(); }) .then(function () { return fetchCartPrivate(); }) .catch(function () { if (itemEl) itemEl.classList.remove('is-loading'); }); } /* ── Event delegation for qty + remove ── */ itemsEl.addEventListener('click', function (e) { var qtyBtn = e.target.closest('.zfp-cd-item__qty-btn'); var removeBtn = e.target.closest('.zfp-cd-item__remove'); if (qtyBtn) { var key = qtyBtn.dataset.key; var action = qtyBtn.dataset.action; var item = currentCart && currentCart.items.find(function(i) { return i.key === key; }); if (!item) return; var newQty = action === 'plus' ? item.quantity + 1 : Math.max(0, item.quantity - 1); updateLine(key, newQty); } if (removeBtn) { var key = removeBtn.dataset.key; updateLine(key, 0); } }); /* ── Zion Circle button ── */ zcBtn.addEventListener('click', function () { zcBtn.disabled = true; zcBtn.textContent = 'Adding…'; fetch('/cart/add.js', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ id: ZC_VARIANT_ID, quantity: 1, selling_plan: 12149522743 }) }) .then(function (r) { return r.json(); }) .then(function () { fetchCartPrivate(); }) .catch(function () { zcBtn.disabled = false; zcBtn.textContent = 'Join'; }); }); /* ── Recommendations ── */ function loadRecs(productId) { if (recsLoaded) return; if (!productId) { /* Fall back to first item in cart */ fetch('/cart.js') .then(function(r){ return r.json(); }) .then(function(cart){ if (cart.items && cart.items.length) loadRecs(cart.items[0].product_id); }); return; } fetch('/recommendations/products.json?product_id=' + productId + '&limit=6&intent=related') .then(function (r) { return r.json(); }) .then(function (data) { var products = data.products || []; if (!products.length) return; recsLoaded = true; recsEl.hidden = false; recsList.innerHTML = products.slice(0, 5).map(function (p) { var imgSrc = p.featured_image || (p.images && p.images[0]) || ''; if (imgSrc && imgSrc.indexOf('//') === 0) imgSrc = 'https:' + imgSrc; if (imgSrc) imgSrc = imgSrc.split('?')[0] + '?width=150&height=150&crop=center'; return '<a href="' + p.url + '" class="zfp-cd-rec">' + (imgSrc ? '<img class="zfp-cd-rec__img" src="' + imgSrc + '" alt="' + p.title.replace(/"/g, '') + '" loading="lazy">' : '<div class="zfp-cd-rec__img"></div>') + '<div class="zfp-cd-rec__title">' + p.title + '</div>' + '<div class="zfp-cd-rec__price">' + money(p.price_min || p.price) + '</div>' + '</a>'; }).join(''); }).catch(function () {}); } /* ── Add to cart — global handler ── */ var atcInFlight = false; window.zfpDrawerAddToCart = function (variantId, quantity, productId) { if (atcInFlight) return Promise.resolve(); atcInFlight = true; lastProductId = productId || lastProductId; recsLoaded = false; return fetch('/cart/add.js', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ id: parseInt(variantId, 10), quantity: quantity || 1 }) }) .then(function (r) { return r.json(); }) .then(function (data) { atcInFlight = false; return data; }) .catch(function(e) { atcInFlight = false; throw e; }); }; /* ── Intercept Nimbus ATC buttons on non-shop-category pages ── */ document.addEventListener('click', function (e) { /* Only intercept if NOT on cart page and NOT already handled */ if (window.location.pathname === '/cart') return; var atcBtn = e.target.closest('[name="add"], .btn-add-to-cart, [data-add-to-cart]'); if (!atcBtn) return; /* Don't intercept if it's inside our section (handled by shop-category JS) */ if (atcBtn.closest('#shopify-section-template--') || atcBtn.closest('.zfp-pcard')) return; var form = atcBtn.closest('form[action="/cart/add"]'); if (!form) return; e.preventDefault(); var idInput = form.querySelector('[name="id"]'); if (!idInput) return; var productEl = form.closest('[data-product-id]') || document; var productId = productEl.dataset && productEl.dataset.productId; atcBtn.setAttribute('disabled', ''); var orig = atcBtn.textContent; atcBtn.textContent = 'Adding…'; window.zfpDrawerAddToCart(idInput.value, 1, productId) .then(function () { atcBtn.textContent = 'Added!'; setTimeout(function () { atcBtn.textContent = orig; atcBtn.removeAttribute('disabled'); }, 2000); }) .catch(function () { atcBtn.textContent = orig; atcBtn.removeAttribute('disabled'); }); }, true); /* ── Initial load ── */ fetchCartPrivate(); })(); </script> <div id="zfp-zc-modal-overlay" class="zfp-zcm-overlay" aria-hidden="true"></div> <div id="zfp-zc-modal" class="zfp-zcm" role="dialog" aria-modal="true" aria-label="Join Zion Circle" hidden> <button class="zfp-zcm__close" id="zfp-zcm-close" aria-label="Close"> <svg width="16" height="16" viewBox="0 0 16 16" fill="none"> <path d="M1 1l14 14M15 1L1 15" stroke="currentColor" stroke-width="2" stroke-linecap="round"/> </svg> </button> <div class="zfp-zcm__topo"></div> <div class="zfp-zcm__inner"><div class="zfp-zcm__head"> <span class="zfp-zcm__icon">◈</span> <div> <h2 class="zfp-zcm__title">Join Zion Circle</h2> <p class="zfp-zcm__savings-line" id="zfp-zcm-savings" style="display:none;"> Save <strong id="zfp-zcm-amount"></strong> on your current order </p> </div> </div><ul class="zfp-zcm__perks"> <li> <svg width="14" height="14" viewBox="0 0 24 24" fill="currentColor"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z"/></svg> <span>15% off eligible purchases — in-store & online</span> </li> <li> <svg width="14" height="14" viewBox="0 0 24 24" fill="currentColor"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z"/></svg> <span>Valid at partner national park stores nationwide</span> </li> <li> <svg width="14" height="14" viewBox="0 0 24 24" fill="currentColor"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z"/></svg> <span>Tax-deductible donation to Zion conservation</span> </li> </ul><div class="zfp-zcm__tiers" id="zfp-zcm-tiers"><button class="zfp-zcm__tier is-selected" data-variant-id="51849238577463" data-price="5000" data-title="$50.00" data-selling-plan="12149522743" onclick="zcmSelectTier(this)"> <span class="zfp-zcm__tier-name">$50.00</span> <span class="zfp-zcm__tier-price">50<small>/yr</small></span> </button><button class="zfp-zcm__tier" data-variant-id="51849238610231" data-price="10000" data-title="$100.00" data-selling-plan="12149522743" onclick="zcmSelectTier(this)"> <span class="zfp-zcm__tier-name">$100.00</span> <span class="zfp-zcm__tier-price">100<small>/yr</small></span> </button><button class="zfp-zcm__tier" data-variant-id="51849238642999" data-price="50000" data-title="$500.00" data-selling-plan="12149522743" onclick="zcmSelectTier(this)"> <span class="zfp-zcm__tier-name">$500.00</span> <span class="zfp-zcm__tier-price">500<small>/yr</small></span> </button><button class="zfp-zcm__tier" data-variant-id="51849238675767" data-price="100000" data-title="$1000.00" data-selling-plan="12149522743" onclick="zcmSelectTier(this)"> <span class="zfp-zcm__tier-name">$1000.00</span> <span class="zfp-zcm__tier-price">1,000<small>/yr</small></span> </button></div><button class="zfp-zcm__submit" id="zfp-zcm-submit" onclick="zcmJoin()"> Join Zion Circle </button> <p class="zfp-zcm__note"> Annual Donation · Tax-deductible · Cancel anytime </p> <a href="/products/zion-circle" class="zfp-zcm__learn"> Learn more about Zion Circle → </a> </div> </div> <style> /* ════════════════════════════════════════ ZION CIRCLE MODAL ════════════════════════════════════════ */ .zfp-zcm-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 99998; opacity: 0; pointer-events: none; transition: opacity .3s ease; } .zfp-zcm-overlay.is-open { opacity: 1; pointer-events: auto; } .zfp-zcm { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -48%) scale(.96); width: min(480px, 94vw); background: #C04A1E; border-radius: 14px; border: 1px solid rgba(255,255,255,.08); z-index: 99999; opacity: 0; transition: opacity .3s ease, transform .3s cubic-bezier(.16,1,.3,1); overflow: hidden; } .zfp-zcm:not([hidden]) { display: block; } .zfp-zcm.is-open { opacity: 1; transform: translate(-50%, -50%) scale(1); } .zfp-zcm__topo { position: absolute; inset: 0; background-image: url('//www.zionpark.org/cdn/shop/t/35/assets/ZFP%20Topography%20Pattern.png?v=101172587969262511901773343610'); background-size: 480px; opacity: .04; pointer-events: none; } .zfp-zcm__close { position: absolute; top: 1rem; right: 1rem; background: rgba(255,255,255,.08); border: none; border-radius: 50%; width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; cursor: pointer; color: rgba(244,239,230,.6); transition: background .12s, color .12s; z-index: 2; } .zfp-zcm__close:hover { background: rgba(255,255,255,.15); color: #F4EFE6; } .zfp-zcm__inner { position: relative; z-index: 1; padding: 2rem 1.75rem 1.75rem; } /* Head */ .zfp-zcm__head { display: flex; align-items: flex-start; gap: .85rem; margin-bottom: 1.25rem; } .zfp-zcm__icon { font-size: 26px; color: #C08C20; line-height: 1; flex-shrink: 0; margin-top: 2px; } .zfp-zcm__title { font-family: 'Oswald', sans-serif; font-weight: 700; font-size: 24px; letter-spacing: .03em; text-transform: uppercase; color: #F4EFE6; margin: 0 0 3px; line-height: 1.1; } .zfp-zcm__savings-line { font-family: 'Barlow', sans-serif; font-size: 13px; color: rgba(244,239,230,.65); margin: 0; } .zfp-zcm__savings-line strong { color: #C08C20; } /* Perks */ .zfp-zcm__perks { list-style: none; padding: 0; margin: 0 0 1.5rem; display: flex; flex-direction: column; gap: .5rem; } .zfp-zcm__perks li { display: flex; align-items: flex-start; gap: .5rem; font-family: 'Barlow', sans-serif; font-size: 13px; color: rgba(244,239,230,.75); line-height: 1.4; } .zfp-zcm__perks li svg { color: #C04A1E; flex-shrink: 0; margin-top: 1px; } /* Tiers */ .zfp-zcm__tiers { display: flex; gap: .65rem; margin-bottom: 1.25rem; flex-wrap: wrap; } .zfp-zcm__tier { flex: 1; min-width: 100px; background: rgba(255,255,255,.05); border: 2px solid rgba(244,239,230,.2); border-radius: 8px; padding: .75rem .65rem; cursor: pointer; text-align: center; transition: border-color .15s, background .15s; display: flex; flex-direction: column; align-items: center; gap: .2rem; } .zfp-zcm__tier:hover { border-color: rgba(192,140,32,.5); } .zfp-zcm__tier.is-selected { border-color: #F4EFE6; background: rgba(244,239,230,.15); } .zfp-zcm__tier-name { font-family: 'Barlow Condensed', sans-serif; font-weight: 600; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: rgba(244,239,230,.8); } .zfp-zcm__tier-price { font-family: 'Oswald', sans-serif; font-weight: 700; font-size: 22px; color: #F4EFE6; line-height: 1; } .zfp-zcm__tier-price small { font-size: 11px; font-weight: 400; color: rgba(244,239,230,.45); } /* Submit */ .zfp-zcm__submit { width: 100%; background: #F4EFE6; color: #C04A1E; border: none; border-radius: 6px; padding: .9rem; font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 16px; letter-spacing: .1em; text-transform: uppercase; cursor: pointer; transition: background .15s; margin-bottom: .75rem; } .zfp-zcm__submit:hover { background: #e8e0d5; } .zfp-zcm__submit:disabled { opacity: .55; cursor: not-allowed; } .zfp-zcm__note { font-family: 'Barlow', sans-serif; font-size: 11px; color: rgba(244,239,230,.65); text-align: center; margin: 0 0 .75rem; } .zfp-zcm__learn { display: block; text-align: center; font-family: 'Barlow', sans-serif; font-size: 12px; color: rgba(244,239,230,.6); text-decoration: underline; transition: color .12s; } .zfp-zcm__learn:hover { color: #F4EFE6; } </style> <script> (function() { var modal = document.getElementById('zfp-zc-modal'); var overlay = document.getElementById('zfp-zc-modal-overlay'); var closeBtn = document.getElementById('zfp-zcm-close'); var selectedVariantId = '51849238577463'; var selectedSellingPlan = '12149522743'; /* ── Open ── */ window.zcModalOpen = function(savingsAmount) { modal.hidden = false; setTimeout(function() { modal.classList.add('is-open'); overlay.classList.add('is-open'); document.body.style.overflow = 'hidden'; }, 10); /* Show savings if provided */ var savingsLine = document.getElementById('zfp-zcm-savings'); var savingsAmt = document.getElementById('zfp-zcm-amount'); if (savingsAmount && savingsAmount > 0) { savingsAmt.textContent = '$' + parseFloat(savingsAmount).toFixed(2); savingsLine.style.display = ''; } else { savingsLine.style.display = 'none'; } /* Reset submit button */ var btn = document.getElementById('zfp-zcm-submit'); if (btn) { btn.disabled = false; btn.textContent = 'Join Zion Circle'; } }; /* ── Close ── */ function closeModal() { modal.classList.remove('is-open'); overlay.classList.remove('is-open'); document.body.style.overflow = ''; setTimeout(function() { modal.hidden = true; }, 300); } closeBtn.addEventListener('click', closeModal); overlay.addEventListener('click', closeModal); document.addEventListener('keydown', function(e) { if (e.key === 'Escape' && modal.classList.contains('is-open')) closeModal(); }); /* ── Tier selection ── */ window.zcmSelectTier = function(el) { document.querySelectorAll('.zfp-zcm__tier').forEach(function(t) { t.classList.remove('is-selected'); }); el.classList.add('is-selected'); selectedVariantId = el.dataset.variantId; selectedSellingPlan = el.dataset.sellingPlan || '12149522743'; }; /* ── Join ── */ var zcmJoinInFlight = false; window.zcmJoin = function() { if (zcmJoinInFlight) return; zcmJoinInFlight = true; var btn = document.getElementById('zfp-zcm-submit'); btn.disabled = true; btn.textContent = 'Adding…'; var body = { id: parseInt(selectedVariantId, 10), quantity: 1 }; body.selling_plan = parseInt(selectedSellingPlan || '12149522743', 10); fetch('/cart/add.js', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body) }) .then(function(r) { return r.json(); }) .then(function(data) { zcmJoinInFlight = false; if (data.status) { btn.textContent = data.description || 'Error — try again'; btn.disabled = false; } else { btn.disabled = false; btn.textContent = 'Joined!'; closeModal(); /* Fetch updated cart and open drawer */ if (typeof window.zfpDrawerAddToCart === 'function') { /* Item already added — just fetch cart and open drawer */ setTimeout(function() { if (typeof window.fetchCart === 'function') { window.fetchCart().then(function() { window.zfpDrawerOpen(); }); } else if (typeof window.zfpDrawerOpen === 'function') { window.zfpDrawerOpen(); } }, 350); } else if (typeof window.zfpDrawerOpen === 'function') { setTimeout(window.zfpDrawerOpen, 350); } } }) .catch(function() { zcmJoinInFlight = false; btn.textContent = 'Error — try again'; btn.disabled = false; }); }; /* ── Override zfpAddZionCircle to open modal instead ── */ window.zfpAddZionCircle = function(btn) { var savings = 0; /* Try to get cart savings from page context */ if (btn && btn.dataset && btn.dataset.savings) { savings = parseFloat(btn.dataset.savings); } window.zcModalOpen(savings); }; })(); </script>